WRS-2224 Operator's Manual - Douglas Lighting Control

WRS-2224
Programmable Relay Scanner
Instruction Manual
DOUGLASR
lighting controls

Technical
demandflex Dialog Series
Lamp Performance
WRV-DF-232NA
T8 Lamps
Lamp
Type
F32T8
Qty
2
1
Input
Max Watts
Min Watts
120/277/347
58/57/57
19/18/18
31/31/30
11/11/11
Ballast Factor
MAX/MIN
0.87/0.05
0.87/0.05
Max
Input Current
(Amps)
.48/.21/.16
.26/.11/.09
BEF*
At Full Bright
Min
Power
Factor
Max Thd
(%)
Min
Crest
Factor
1.53 98 10%

Introduction
WRS-2224 Programmable Relay Scanner
The WRS-2224 Scanner can be programmed so that when an input is signalled ON or OFF, it switches a
specific group of output relays ON or OFF. The WRS-2224 has 5 inputs and 24 relay outputs.
Each input can be have a unique relay group programmed to it. In addition to the basic ON and OFF
commands, an input can have the optional switching features of 'Flick-Warn' and 'Time-Out'.
24V Transformer
Connections
Relay Output Connections
24 outputs, 12 per side.
The relay scanner can be programmed
with the built-in keypad to switch a group
of relay outputs when signaled by an
input. There are 5 groupings (5 inputs)
available.
Each group can support the FLICK WARN
switching option, while only one group
can be programmed to support the TIME
OUT option.
Digital Link Connection
Allows the scanner to be linked to a network or another system.
There are modules available for:
a. RS-485 Network on new line Proprietary
Communications Protocol;
b. FTT-10 Network on new line Lonworks
Open Standard Protocol.
Group Input Connections
5 available, each controlling one relay
group.
Up to 6 low-voltage switching devices can
be connected in parallel to each input.
Separate electrically isolated 24V return
connections provided for groups 1, 2 & 3
and for groups 4 & 5.
DOUGLAS
WRS-2224: Directions & Applications page 1 lighting controls

Parts & Dimensions
Relay Outputs
24 output terminals
(12 per side) are provided
for individual relay control.
Douglas 2-wire switches can
be connected in parallel to
permit individual control of a
relay by a switch.
Individual Output LEDs
In NORMAL mode, LEDs display
if the relay is ON or OFF.
In PROGRAM mode, LEDs display
if the relay is included in the
group that is being programmed
to the selected group input.
Mode Select Buttons & LEDs
NORMAL mode.
PROGRAM mode.
OPTIONS mode:
a. FLICK WARN after OFF;
b. TIME OUT after ON;
c. TIME OUT with FLICK WARN.
Directions
Directions are printed on the
keyboard for handy user reference.
Individual Output Buttons
In NORMAL mode, use these buttons to
switch the connected relay ON or OFF.
In PROGRAM mode, use these buttons
to enter or remove the connected relay
to/from the group being programmed.
Master Switch 0verride Buttons
Use these buttons to switch all of
the relays in a selected input
group ON or OFF.
Input Select Button
Use this button to select the relay
groups/switch inputs 1, 2, 3, 4 or 5.
Group Switch Inputs (5)
Connect Douglas 2-wire switches to
switch the group of relays ON or OFF.
You can connect up to 6 switches
and/or 2-wire timer outputs to the
same switch input.
Digital Link Control Socket
Plug-in for a RS-485 or Lonworks
network interface such as a
Douglas WNX-2624 module.
Dimensions
6.5"
(165 mm)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
4.0"
(103 mm)
Plan View
1.75"
(45 mm)
Side View
Relay Scanners mount to 35mm DIN rail
installed in relay panels.
Each unit is shipped with DIN mounting rail.
DOUGLAS
WRS-2224: Directions & Applications page 2 lighting controls

Specifications
Specifications
General
Power:
24VAC / 50mA Class 2 Low Voltage device.
Power rating does not include power used to switch relays.
Master Switches:
There are 5 master switch inputs that are compatible
with all models of Douglas relay switches.
A maximum of 6 switches can be connected in parallel to
the same master switch input.
Maximum wire length for a master switch is 2000'.
(600m) if using 18 AWG wire.
Digital Link:
Programmable scanners have a digital link socket
that permits connection of network communication
modules.
Programming
Use the membrane keypad built into the face of
the programmable relay scanner to assign relay
groups to each of the master switch inputs.
Program settings (relay groups) are not lost in the
event of a power outage.
Programming directions are printed into the front
cover for handy reference.
Environment
Indoors, stationary, non-vibrating, non-corrosive
atmosphere and non-condensing humidity.
Ambient operating temperature:
0 O F to +120 0 F (-15 O to +50 O C).
Outputs
24 Douglas relay outputs.
Outputs fire in sequence (

Installation
INSTALLATION INSTRUCTIONS
1. Install the WRS-2224 Programmable Relay
Scanner inside the relay panel. The scanner
mounts to 35mm DIN rail, as shown in the
drawing to the right. Mounting rail is supplied
with each scanner unit.
Outputs
1-12
2. Connect the red terminal of each relay to an
Inputs
output terminal of the scanner. You should
1-5
use 18 AWG wire. In most instances, If there
are
more than 24 relays, install additional scanners.
DIN Rail
3. Connect the group switching devices (switch or timer) to the scanner's
group inputs. If you are connecting 24V contact switching devices other
than a Douglas switch or time clock, you must first configure the inputs
for a 24V contact. Use the keyboard on the scanner, as detailed in the
'Input Configuration' section on page 6 of this manual.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Outputs
13-24
4. A maximum of 6 switching devices can be connected in parallel to
the same master input, with a maximum wire length of
2000'/600m if using 18 AWG wire. Refer to the Switch Inputs
section below for more information on input switching devices.
5. After all the output relays have been assigned to lighting loads,
determine which relays are to be switched together as groups.
6. Use the keypad built into the front surface of the scanner to assign
relay groups to be switched by each input. Refer to the SETUP
pages of this manual and the directions printed on the scanner for
details.
Switch Inputs
Switching with Momentary
Contacts that use Diodes
ON & OFF switching with contacts from another
device or system is best accomplished with
momentary type contacts that have a diode
connected in series (one contact and diode for ON
and another for OFF).
Momentary contacts that utilize diodes have 2
advantages:
1. It is possible to have repeat ON or OFF
commands. For example, during the night, an
OFF signal could be issued every hour to ensure
lights are swept OFF.
2. Douglas relay switches can be connected in
parallel for convenient override.
Momentary contacts with diodes mimic the
Douglas relay switch. Thus, the default input
configuration of the WRS-2224 scanner is for
the Douglas WR-8501 relay switch.
Switching with 24V
Momentary or Maintained
Contacts (no Diodes)
Inputs for the WRS-2224 can also be configured to
accept 24V signals that have no diode connected.
The signal can be momentary or maintained.
When using the 24V contact control, be aware
there are some restrictions. An input can be
configured to switch relays ON when 24V is applied
and OFF when it is removed. However, when this
is the case it is not possible to send repeat OFF
signals without an intervening ON signal. You can
also configure the input so that only OFF signals
are sent if a repeat signal is desired, although in
this case there would be no ON signal. Should
repeat OFF as well as ON signals be needed, then
two 24V contacts would be needed with two
inputs, one for the OFF signal and one for the ON.
Refer to 'Input Configuration Mode' on page 6 for
all the settings available for 24V contact control.
1
2
3
4
5
6
7
8
9
10
11
12
Momentary ON Contact
OFF Contact
ON
Diode
OFF
Diode
Master Sw Override
Red
Douglas switch OK with
momentary contacts.
NOT OK with maintained
contacts.
Maintained Form C
Contact Set
Coil
1
2
3
4
5
6
7
8
9
10
11
12
NO NC
COM
13
14
15
16
17
18
19
20
21
22
23
24
WRS-2224
Relay
Scanner
13
14
15
16
17
18
19
20
21
22
23
24
W B
1
2
3
SwitchB Inputs 45
B
ON Diode
OFF Diode
(OR)
B
W
Tr
Douglas Relay Switches
The inputs of the WRS-2224 scanner
are compatible with all models of
Douglas relay switches. However, If
you are connecting a different switch
type, you must re-configure the input
before connecting the switch. Follow
the procedure described in the 'Input
Configuration' section of this manual.
When connected to the scanner, the
LEDs of a Douglas switch will show the
state of the relay group. If any of the
relays in the group are ON, the group
is defined as being ON and the red LED
is lit. Only when all of the relays in the
group are OFF is the group defined as
being OFF and the green LED is lit.
Take care when using Douglas WR-
8501 switches. The WR-8501 push
button switch will always send a signal
that is opposite to its displayed state. If
repeat ON or OFF control is desired, use
the WR-8001 rocker switch which is
able to select an ON or OFF signal.
Douglas Timer Automation
The inputs of the WRS-2224 scanner
are compatible with Douglas timers,
such as the WTP-4408. When
connecting a Douglas timer to the WRS-
2224 scanner, the input must be
configured for a Douglas relay switch
(default).
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
WRS-2224
Relay
Scanner
Switch
Inputs
WR-8001 Rocker Switch
Red
13
14
15
16
17
18
19
20
21
22
23
24
W B
WR-8501 Pushbutton
Switch with
ON & OFF LEDs
1
2
3
B 45
B
Red
Red
WTP-4408
Time Clock
A B C D
1 2 3
1 2 3
Esc
4 5 6
4 5 6 7 8 9
0 7 8 9
0
5 A I H
5 A I H
Maximum:
6 switches
WRS-2224: Directions & Applications page 4 lighting controls
Clr
9
!
"#$%&
9
*
B
W
Tr
DOUGLAS

Basics: Normal Mode
NORMAL MODE
Allows the connected relays to be switched with
the scanner.
Output Terminals
Output Leds
Output Buttons
To Use Normal Mode:
1. Make sure the individual relays are properly connected to the
output terminals.
2. The WRS-2224 Scanner will usually be in NORMAL mode. If left in
PROGRAM mode, it will revert to NORMAL mode after 2 minutes.
If the NORMAL MODE indicator LED is OFF, press its select
button to exit the PROGRAM mode. The NORMAL MODE
indicator LED should turn ON.
3. In NORMAL MODE, the output LED will be ON if the connected
relay is on.
To switch any relay ON/OFF, press its output button.
4. A flashing LED indicates:
(a) There is a defect in the relay (or)
(b) There are 2 relays connected to the same terminal with one
relay ON and the other OFF.
Normal Mode
Select Button
Basics: Version Number Basics: Normal Mode
VERSION NUMBER DISPLAY
When you are in NORMAL mode and press the NORMAL
MODE select button, some output LEDs, as well as the
button's indicator LED, will flash for 10 seconds.
The combination of flashing output LEDs 1-8 (left output
terminal) indicate the version number -in binary code- of
the Relay Scanner.
If any of the output LEDs 13-20 (right output terminal) are
flashing, their combination indicates the version number
-in binary code- of the WNX-2624 Network Node attached
to the Scanner's Digital Link.
1. Any flashing output LEDs 1-8 indicate the version number of
the Relay Scanner, with any flashing LEDs 1-4 indicating the
integer after the decimal point and any flashing LEDs 5-8
indicating the integer before the decimal point.
2. The combination of flashing numbers #1-4 and #5-8 denote
the integer in binary code (see the insert at upper right).
3. When a Network Node is attached to the Digital Link, some of
the output LEDs 13-20 will be flashing. They indicate the
version number of the Network Node, with the combination of
flashing LEDs 13-16 indicating the integer after the decimal
point and the combination of flashing LEDs 17-20 indicating
the integer before the decimal point.
4. See the insert at lower right for examples of flashing LED
combinations for version numbers that may currently be in use.
Binary Code
BINARY CODE is a method of
expressing all whole numbers as
some combination of powers of the
number 2.
A power of 2 is the number of
times 2 is multiplied by itself, where
2 O =1, 2 1 =2, 2 2 =4, 2 3 =8, etc.
In binary code, the number one
would be 2 O , the number two would
be 2 1 , the number three would be
2 0 +2 1 (1+2), and the number four
would be 2 2 . In like manner, you
can express all whole numbers as
either a power of 2 or as a combination
of two or more powers of 2.
Scanner Version #
Node Version #
LEDs Flashing
3.0 #5, #6
3.1 #1, #5, #6
3.2 #2, #5, #6
3.3 #1, #2, #5, #6
3.4 #3, #5, #6
LEDs Flashing
4.0 #19
4.1 #13, #19
4.2 #14, #19
4.3 #13, #14, #19
4.4 #15, #19
Equivalent
Numbers Flashing LEDs
0 = none (none flashing)
1 = 2 0 first
2 = 2 1 second
3 = 2 0 +2 1 first & second
4 = 2 2 third
5 = 2 0 +2 2 first & third
6 = 2 1 +2 2 second & third
7 = 2 0 +2 1 +2 2 first, second & third
8 = 2 3 fourth
DOUGLAS
WRS-2224: Directions & Applications page 5 lighting controls

Setup: Input Configure Mode
INPUT CONFIGURE MODE
Allows specifying which type(s) of switching hardware can be
connected to each group switch input.
The default switch type for all inputs is the Douglas WR-8501
with Led Indicators. This configuration is compatible with all
models of Douglas relay switches, relay time clocks and photo
cells and no re-configuration is necessary for those devices.
However, if you will be connecting any different switch type(s)
to an input, follow this procedure.
To Use Input Configure Mode:
1. Make sure NORMAL MODE is selected. Its top indicator light should be ON.
2. Use the INPUT SELECT BUTTON to scroll to the group input #1-5 you
wish to configure (when its INPUT LED is ON).
3. Press and hold the OPTIONS MODE select button. The FLICK WARN LED
will begin flashing.
4. One of the OUTPUT LEDs #13-23 will display, showing the current
configuration selected for the input. Refer to the table below for a list of all
available configurations. The factory default is #21, the Douglas WR-
8501 LED indicator rectified AC pulse switch.
5. Depress the OUTPUT SELECT BUTTON(S) (#13-23) to select the desired
configuration(s) for the input.
You have 10 seconds to do this. After 10 seconds, the FLICK WARN LED
stops flashing and the scanner reverts to NORMAL mode.
6. Repeat steps 2-5 to configure other group inputs.
Flick
Warn
LED
Options Mode
Select Button
Output Buttons
#13-#23
Output LEDs
#13-#23
Input
LEDs
Normal Mode
Select Button
Input
Select
Button
Output Button
Pressed
13
14
15
Switch Type Configured for
AC
Momentary
Contact.
Action
(13) - ON when switched
(14) - OFF when switched
(15) - OPEN=OFF / CLOSED=ON
16
17
18
Coil
AC
Maintained
Contact.
(16) - OPEN=ON / CLOSED=OFF
(17) - OPEN=no action / CLOSED=ON
(18) - OPEN=no action / CLOSED=OFF
19
(19) - OPEN=ON / CLOSED=no action
20
21 (Default)
22
23
LEDs
Rectified AC Pulse.
Current for Indicator LEDs.
NOTE: Non-LED switches are also
compatible with this configuration.
Rectified AC Pulse.
No current for Indicator LEDs.
NOTE: LED switches will not function
properly with this configuration.
Table 1. Switch Hardware Type
(20) - OPEN=OFF / CLOSED=no action
(21) - Positive=OFF / Negative=ON
(22) - Positive=ON / Negative=OFF
(23) - Positive=OFF / Negative=ON
DOUGLAS
WRS-2224: Directions & Applications page 6 lighting controls

Setup: Program Mode
PROGRAM MODE
Allows output relays to be grouped, with each group
controlled by a switch input.
Output
Buttons
Output
LEDs
To Use Program Mode:
1. Make sure the output relays are properly connected to the output
terminals and that the group switches and/or timer outputs are
properly connected to the input terminals.
2. Make sure NORMAL MODE is selected. The top indicator LED of
the NORMAL MODE select button should be ON.
3. Use the INPUT SELECT button to scroll to the desired input #1-5
(when its indicator INPUT LED is ON).
4. Press the PROGRAM MODE select button. Its indicator light will
begin flashing. The OUTPUT LEDs of the relays that are controlled
by the selected input will be ON.
5. Add or remove output relays from the selected input by pressing
the OUTPUT button of the desired relay.
6. When you have selected all the relays for the group, press the
NORMAL MODE select button to return to NORMAL mode.
7. Repeat steps #3 - 6 to program other inputs with a relay group.
NOTE: A relay can be in more than one group.
8. When you are programming a relay group, you can include or
exclude all the output relays by pressing the ON OVERRIDE or OFF
OVERRIDE button, respectively.
9. When you are in NORMAL mode, you can turn all the relays
assigned to an input ON or OFF by selecting that input with the
INPUT SELECT button, and then pressing the ON OVERRIDE or
OFF OVERRIDE button.
NOTE:
If there is 2 minutes of inactivity during
PROGRAM mode, the scanner will revert to
NORMAL mode.
To return to PROGRAM mode, press the
PROGRAM MODE selectbutton.
Input
LEDs
Program Mode
Select Button
Normal Mode
Select Button
ON Override
Select Button
OFF Override
Select Button
Input
Select Button
Input
Terminals
DOUGLAS
WRS-2224: Directions & Applications page 7 lighting controls

Setup: Flick Warn Option
FLICK WARN OPTION
Allows any relay group to have the FLICK WARN feature.
FLICK WARN warns occupants that the lights will be switched
OFF in 5 minutes.
Occupants can cancel the OFF sweep for the local circuit by
flicking the local switch. Or, they can cancel the OFF sweep for
the entire group by pressing the group's input switch once.
9
12
PM
3
FLICK WARN Sequence
1
2 3 4
OFF
6
Sw
Sw Sw Sw
OFF Signal
Lights flash to
warn of OFF
Occupant has
5 minutes to
cancel OFF
If cancelled,
lights stay ON
If not cancelled,
lights go OFF
To Assign the Flick Warn Option:
1. Make sure the output relays are properly connected to the output
terminals and that the group switches and/or timer outputs are
properly connected to the input terminals.
2. Make sure NORMAL MODE is selected. Its top indicator LED should
be ON.
3. Use the INPUT SELECT button to select the desired group #1-5
(when its indicator INPUT LED is ON).
4. Press the PROGRAM MODE select button. Its indicator LED will
begin flashing. If you have not already done so, select the output
relays that belong to that input's group.
5. Press the OPTIONS MODE select button once. The FLICK WARN
indicator LED will turn on. (Pressing the OPTIONS MODE button
will cycle the selections from FLICK WARN to TIME OUT to TIME
OUT with FLICK WARN back to NO SELECTION.)
6. Return to NORMAL mode.
7. Repeat steps #3 - 6 to assign the FLICK WARN option to another
group.
8. For any group assigned the FLICK WARN option, the FLICK WARN
indicator LED will be ON whenever the group is selected and the
FLICK/TIME-OUT ACTIVE LED will flash whenever the flick warning
operation is occurring.
Flick Warn
LED
Output Mode
Select Button
Program Mode
Select Button
Input
Select
Button
Time Out
LED
Input
LEDs
Normal Mode
Select Button
Flick/
Time Out
Active LED
To De-Assign the Flick Warn Option:
1. Select the group (with INPUT SELECT).
2. Go to PROGRAM mode.
3. Press the OPTIONS button (usually 3 times) so that both the
FLICK WARN LED and TIME OUT LED are OFF.
4. Return to NORMAL mode.
NOTE:
Assigning the FLICK WARN option to a relay group that
controls any HID lighting is NOT RECOMMENDED.
(HID lights require more than 5 minutes to turn ON after
being turned OFF.)
DOUGLAS
WRS-2224: Directions & Applications page 8 lighting controls

Setup: Time Out Option
TIME OUT OPTION
) M I A HA = O C H K F J D = L A JD A 6 1 - 7 6 BA = JK HA
IMPORTANT1BJD A HA = O C H K F B= E F K JD = I JD A 6 1 - 7 6
BA = JK HA = I I EC A @ JD A E F K JM E not sM EJ? D JD A HA = O C H K F
1 I JA = @ JD A E F K JM EA = > A JD A 6 1 - 7 6 BA = JK HA M D A
JK H A @ = @ @ EI = > A JD A 6 1 - 7 6 BA = JK HA M D A JK H A @ BB
1
12
PM
9
6
Mode
Change
Sw
3
TIME OUT during Closed Hours
2 3 4
Sw
Sw
9 D A = ? JEL A 6 1 - 7 6 ? = K I A I JD A HA = O K JF K JJ I J= HJ= E JA H =
JE A HM D A A L A HJD A ? A ? JA @ HA = O EI I M EJ? D A @ 7 F JE A
A N F EHO D K HI = JA HJD A K JF K JI M EJ? D A I JD A HA = O . .
6 1 - 7 6 EI JO F E? = O A = > A @ = @ @ EI = > A @ M EJD = JE A ? ?
? A ? JA @ J JD A E F K J) I = ? A N = F A K I A JD A JE A
? ? J A = > A 6 1 - 7 6 @ K HE C ? I A @ D K HI 6 D K I ? =
I M EJ? D A I M EM H H = O @ K HE C > K I E A I I D K HI = @ BK ? JE
M EJD 6 1 - 7 6 @ K HE C ? I A @ D K HI
Sw
5
9
OFF
12
3
AM
6
Sw
6
Sw
TIME OUT mode
enabled at start of
closed hours
Light turned ON
with wall switch:
timer starts
Exit without
switching OFF
Timer expires,
lights switched OFF
TIME OUT mode
disabled at start of
business hours
Switches work normally
(no TIME OUT) during
business hours
To Assign the Time Out Option:
1. Make sure the output relays are properly connected to the output
terminals and that the timer output is properly connected to the
selected input terminal.
2. Make sure NORMAL MODE is selected. Its top indicator LED should be ON.
3. Use the INPUT SELECT button to select the designated group #1-5
(when its indicator INPUT LED is ON).
4. Press the PROGRAM MODE select button. Its indicator LED will begin
flashing. If you have not already done so, select the output relays that
belong to that input.
5. Press the OPTIONS MODE button until the TIME OUT indicator LED
turns ON. (Pressing the OPTIONS MODE button will cycle the
selections from FLICK WARN to TIME OUT to TIME OUT with FLICK
WARN back to NO SELECTION.)
6. If you want to assign the TIME OUT option with a FLICK WARN to the
group, press the OPTIONS MODE button until both the TIME OUT and
the FLICK WARN indicator LEDs are ON.
7. Return to NORMAL mode.
8. For the group assigned the TIME OUT option, the TIME OUT indicator
LED will be ON whenever the group is selected, and the FLICK/TIME
OUT ACTIVE LED will flash whenever the TIME OUT operation is
occuring.
NOTE:
Only one group can be assigned the TIME OUT option. If
more than one group is assigned TIME OUT, those groups
will not respond to input or override switch commands.
It will be necessary, in that case, to shut off and restart the
Relay Scanner, and then re-program all of the input groups
with only one all-inclusive group assigned TIME OUT.
To De-Assign the Time Out Option:
1. Select the group (with INPUT SELECT).
2. Go to PROGRAM mode.
3. Press the OPTIONS button so that both the TIME OUT and the
FLICK WARN indicator LEDs are OFF.
4. Return to NORMAL mode.
Flick Warn
LED
Output Mode
Select Button
Program Mode
Select Button
Input
Select
Button
Time Out
LED
Input
LEDs
Normal Mode
Select Button
Flick/Time Out
Active LED
Scanner Input
When set in TIME OUT mode,
the time clock enables TIME OUT
with an ON signal and disables
TIME OUT with an OFF signal.
Relays that are assigned to the
group are not switched.
WTP-4408
Time Clock
A B C D
1 2 3
1 2 3
Esc
4 5 6
4 5 6 7 8 9
0 7 8 9
0
5 A I H
5 A I H
Clr
9
!
"#$%&
9
*
DOUGLAS
WRS-2224: Directions & Applications page 9 lighting controls

OPTIONS
PGM
NORMAL
MODE
INPUT
SELECT
ON
OVERRIDE
OFF
OVERRIDE
Connections: Stand Alone Panels
Office Floor -Reflected Ceiling Plan
Office
Office
Office Office Office
Office
Sw
Sw
Sw
Office
NW Quadrant
Hall
NE Quadrant
Office
Sw
Office
Library
Storage
Office
Zones
Office
Sw
Hall
Elevator
Office
Hall
Office
NW Quadrant NE Quadrant
Sw
Hall
Core
Office
Hall
Reception
Core
Office
SW Quadrant
SE Quadrant
Mens
Office
Office
SW Quadrant
Womens
Hall
Photo
Copy
Office
SE Quadrant
Office
Office Office Office Office Office Office
Individual
Switches
White
Relay Panel
Transformer
W
B 24VAC
Group 1
Relay #
1
2
Lighting Circuit
NW Priv Office
NW Priv Office
Relays
1
2
3
4
5
6
7
8
9
10
11
12
Outputs
1
13
2 14
3
15
4 16
5
17
6 18
7
19
8 20
9
21
10 22
11
23
12 24
13
14
15
16
17
18
19
20
21
22
23
24
Relays
Group
Switch
Station
3
4
5
6
NW Priv Office
Library
NW Priv Office
NW Priv Office
MODE
WRS-2224
Relay
Scanner
Inputs
W B
WTP-4408
Time Clock
1
2
3
B 45
B
NW
Quad
SW
Quad
NE
Quad
SE
Quad
Core
Core
Core
A B C D
1 2 3
1
4
2
5
3
6
Esc
Clr
47 85 96
7 0 8 9
0
5 A I H
9
!
"#$%&
5 A I H
9
*
W
24VAC
Power
DOUGLAS
WRS-2224: Directions & Applications page 10 lighting controls

Connections: Stand Alone Panels
Simple Stand Alone Panels
The WRS-2224 Programmable Relay Scanner permits a group of relays to
be controlled with a single switch. The scanner can support up to 5
groups of relays, each controlled by one of 5 switch inputs.
In this example, the 24 output relays are divided into 4 groups, with each
group controlling the lights in an area, or zone, of the Office. Group 1
controls the lights in the NW Quadrant (shaded area in Ceiling Plan).
Group 2 controls the SW Quadrant, Group 3 the NE Quadrant and Group 4
the SE Quadrant. The Core circuits are controlled directly by a switch in
the Group Switch Station.
Use the keypad built into the front of the scanner to assign the relay
groups. Changes to relay groups are easy to accomplish with the keypad;
no rewiring is necessary. In this example, Relays #1-6 are assigned to
Group 1.
Install wall switches to provide for occupant override. They can be either
individual wall switches connected directly to the relays or group switches
connected to the scanner inputs.
In this example, Relays #1-6, which comprise Group 1, are each
connected to a wall switch in a Private Office, as shown in the diagram on
the previous page.
Another application, which can yield significant energy savings, is the use
of the TIME OUT feature. During any period TIME OUT is activated, any
lights in the designated TIME OUT group that are left on for 2 hours will
be switched OFF automatically.
In this example, Group 5, to which all of the relays on the floor are
assigned, is programmed for the TIME OUT option. TIME OUT will be
activated and de-activated by the WTP-4408 Timer connected to Group
5's input terminal.
The scanner can be set to provide groups with FLICK WARN, in which the
lights flick to warn occupants they will be automatically shut off in 5
minutes. Occupants can then cancel the OFF sweep by flicking the local
switch or by pressing the group switch once.
In this example, each of Groups #1-4 is programmed for FLICK WARN
which is to occur 5 minutes before the OFF sweep time designated for
that group by the WTP-4408 Timer. Group #5 is programmed for the
FLICK WARN along with the TIME OUT option, so its flick warning will
occur with any lights left on 2 hours when TIME OUT is enabled.
DOUGLAS
WRS-2224: Directions & Applications page 11 lighting controls

Nor
Nor
malMode
malMode
or
malMode
Nor
Nor
malMode
malMode
Connections: Multiple Panels
Multiple Relay Panels
In larger buildings, there often are several load centers that need to be
controlled from one location.
A simple wiring strategy is to interconnect the relay panels with a multiconductor
bus. This method permits several building-wide controls to
exist at each relay panel. Connect the relay panel's scanner inputs to
the appropriate control wire of the bus.
Projects that are interconnected with a multi-conductor bus should use
a separate transformer to supply the multi-conductor bus.
This is done so the power that switches the relays in each panel is
isolated from the power used for the building-wide switching circuit.
As all Douglas scanners have optically-isolated master switch inputs,
the WRS-2224 Relay Scanner in the panel will isolate the power in the
bus signal from the power used in the panel.
Lights
Lights
Lights
Main Panel
Rly
Rly
Rly
Rly
Rly
WRS-2224
Scanner
W
B
Tr
Rly
Rly
Rly
Rly
Rly
Rly
Sw
Sw
Lights
Lights
Lights
Sw
Sw
Lights
Lights
Lights
Remote Panel
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
WRS-2224
Scanner
WRS-2224
Scanner
Tr
12345678 WB
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Lights
Lights
Lights
Lights
Lights
Lights
Lights
Lights
Lights
Sw
Sw
Remote Panel
Rly
Rly
Rly
Rly
Rly
WRS-2224
Scanner
Tr
12345678 WB
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Individual
Occupant
Switches
Lights
Lights
Lights
Sw
Sw
Sw
Lights
Lights
Lights
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
WRS-2224
Scanner
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Rly
Lights
Lights
Lights
Lights
Lights
Lights
1 234
56
78
24V W B
Inter-Connected Panels
A 10-conductor bus will provide eight master switch
controls that can be used in several panels.
Connect a master switch station and/or timer to the bus
for override and automation.
Sw 1
Sw 4
Sw 7
Sw 3
Sw 6
Sw 2
Sw 5
Sw 8
Group
Switch
Station
W
B
WTP-4408
Time Clock
A B C D
1 2 3
Esc 1
4
2
5
3
6
Clr
47 58 69
7 0 8 9
0
Sensor
Sensor
W
12345678
W
B
12345678
Global
Transformer
WRS-2224: Directions & Applications page 12 lighting controls
W
B
DOUGLAS

Connections: Multiple Panels
Relay Scanner Networks
Another method of interconnecting load centers/relay panels is to use
the Douglas WNX-2624 Network Node. With the WNX-2624 Node, you
can network the WRS-2224 Programmable Relay Scanner with a nonpolarized
data signal to other WRS-2224 Relay Scanners.
Up to twenty-four WRS-2224/WNX-2624 scanner/node combinations
can exist within a self-configured system.
In a self-configured system, the input of one scanner can control relays
that are connected to any of the scanners that are a part of the system.
WRS-2224
Relay Scanner
The WNX-2624 Network Node is LonMark compliant and can be
integrated to be part of and to be controlled by another system.
Relay Panel
Relays
R
R
R
R
R
R
R
R
R
R
R
R
Transformer
24V
Scanner
WNX-2624
Network Node
Remote Panels
w
.DouglasLIghtingControls.com
Node
DOUGLAS
WRS-2224: Directions & Applications page 13 lighting controls

Troubleshooting
WRS-2224 Troubleshooting Guide
General Guidelines:
Make sure that 24V power exists (always measure between 22V and
30VAC);
Make sure all inputs and outputs are tightly connected;
Make sure all relay groups are programmed correctly;
If non-default input switching devices are used, make sure all inputs are
configured properly.
Problem Encountered
Flashing output LED(s)
during NORMAL mode
Output relay(s) not
tripping properly
FLICK WARN not working
Possible Cause(s)
Defective output relay
2 relays connected to same output
with one relay ON and the other OFF
External AC current leaking into circuit
Improper input voltage (must be
between 22V and 30VAC)
Input(s) not configured when non-default
input switching device(s) used
Relay(s) also part of another input group
with contradictory input signals
Relay(s) not included in input group
FLICK WARN not properly programmed
HID lighting used in FLICK WARN group
Corrective Action
- replace relay
- reset relays
- if either relay is in another input group,
remove it from that group
- check wiring
- check input configuration
- check input switching device(s) and connections
- check power source
- configure input(s) per instructions on page 6
- remove relay(s) from other group
- check programming, re-program if necessary
- check programming, re-program if necessary
- use circuits with non-HID lighting
TIME OUT not working Inappropriate input switching device used - make sure input is only ON during TIME OUT period
- use timer as input instead of switch
Relay group not programmed properly
TIME OUT assigned to more than one group
- check programming, re-program if necessary
- assign TIME OUT only to one all-inclusive group
Table 2. WRS-2224 Troubleshooting Guide
DOUGLAS
WRS-2224: Directions & Applications page 14 lighting controls

Appendix A - Input/Output Log
Date
Input Input Switches Output Relays
Type Remarks # Remarks # Remarks
1.
Type Remarks # Remarks # Remarks
2.
Type Remarks # Remarks # Remarks
3.
Type Remarks # Remarks # Remarks
4.
Type Remarks # Remarks # Remarks
5.
Additional Remarks:
DOUGLAS
WRS-2224: Directions & Applications page 15 lighting controls

Notes
DOUGLAS
WRS-2224: Directions & Applications page 16 lighting controls

Notes
DOUGLAS
WRS-2224: Directions & Applications page 17 lighting controls

DOUGLASR
lighting controls
www.DouglasLightingControls.com
4455 Juneau Street • Burnaby, B.C. • CANADA
phone: (604) 873-2797 • fax: (604) 873-6939
WARRANTY
DOUGLAS products are warranted for one year from the
date of purchase by the consumer against defects due
to materials and the company's worksmanship only. The
sole obligation hereunder shall be to repair, or at the
company's option to replace, products as aforesaid,
provided same are returned, upon authorization,
'Transportation Prepaid' to the company's Burnaby,
CANADA office within the said period. Defects or failures
due to improper or careless installation, storage or
handling, or usage other than rated conditions, are
specifically excluded from this warranty. No liability is
accepted for return transportation charges following
repair or replacement as aforesaid or for reinstallation
costs. No other liability of any nature or kind, whether
arising out of or from the use of the product, whether or
not defective, is assumed.
DOUGLAS lighting controls reserves the right to cancel or
change items shown in this publication without notice.