simatic s7-300 - megaelektrik.net

4
SIMATIC S7-300
Function modules
FM 355 closed-loop control modules
■ Overview
• 4-channel closed-loop control module for universal closedloop
control tasks
• Used for temperature, pressure, flowrate and fill-level control
loops
• User-friendly online self-optim ization for temperature controls
• Preprogrammed controller structures
• 2 control algorithms
• 2 versions:
- FM 355 C as continuous-action controller;
- FM 355 S as step or pulse controller
• With 4 analog outputs (FM 355 C) or 8 digital outputs (FM 355 S)
for direct control of the most common types of actuator
• Continued operation of the contro l loop is possible even after
a CPU stop or failure
■ Technical specifications
6ES7 355-
0VH10-0AE0
6ES7 355-
1VH10-0AE0
Voltages and currents
Load voltage L+
- Rated value (DC) 24 V 24 V
- permissible range,
20.4 V 20.4 V
lower limit (DC)
- permissible range,
upper limit (DC)
28.8 V 28.8 V
Current consumption
• from load voltage L+ (no load),
max.
• from backplane bus 5 V DC, max.
310 mA;
typ. 260 mA
75 mA;
typ. 50 mA
270 mA;
typ. 220 mA
75 mA;
typ. 50 mA
• Power dissipation, max. 7.8 W 6.9 W
• Power dissipation, typical 6.5 W 5.5 W
Connection system
• Requisite front connector 2 x 20-pin 2 x 20-pin
Digital inputs
• Number of digital inputs 8 8
Length of cable
- Length of cable shielded, max. 1,000 m 1,000 m
- Length of cable unshielded, 600 m 600 m
max.
• Input characteristic to comply with Yes
Yes
IEC 1131, Type 2
Input voltage
- Rated value, DC 24 V 24 V
- for signal "0" -3 to 5 V -3 to 5 V
- for signal "1" 13 to 30 V 13 to 30 V
Input current
- for 1 signal, typical 7 mA 7 mA
6ES7 355-
0VH10-0AE0
6ES7 355-
1VH10-0AE0
Digital outputs
• Number of digital outputs 8
• Length of cable shielded, max.
1,000 m
• Length of cable unshielded, max.
600 m
• Short-circuit protection of the
output
• Limitation of voltage induced on
circuit interruption to
• Lamp load, max.
• Driving a digital input
Yes;
electronic
L+ (-1.5 V)
5 W
Yes
Output voltage
- for 1 signal L+ (-2.5 V)
Output current
- for 1 signal rated value 100 mA
- for 1 signal permissible range
for 0 to 60 °C, min.
5 mA
- for 1 signal permissible range
for 0 to 60 °C, max.
150 mA
- for 0 signal residual current, max. 0.5 mA
Parallel switching of 2 outputs
- for logical links Yes
Switching frequency
- at resistive load, max. 100 Hz
- at inductive load, max. 0.5 Hz
- at lamp load, max. 100 Hz
Summation current of the outputs
(per group)
- up to 60 °C, max. 400 mA
Load impedance range
- lower limit 240 Ω
- upper limit 4 kΩ
4/114 Siemens ST 70 · 2005