Elster LCR-212 Single Phase Load Control ... - Essential Energy

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UNCLASSIFIED OPERATIONAL PROCEDURE - Elster LCR-212 Single Phase Load Control Ripple Receiver Installation and Use CEOP8086 • random switching delay after receipt of a command (the maximum switching delay corresponds to the period of the cycle T) • retriggering • During a running period, starting of a new cycle can be initiated by means of a repeated switching command. • switching position on termination of the cyclic switching Cyclic switching can be activated by the following events: • cyclic switching command • ROS • schedule 1 4.6 Signal Absence Sensing (SAS) The receiver's signal absence detection function monitors the time between two valid start pulses in the network. The following reactions can be specified if no start pulse is detected within a definable time: • relay positions of R1 – R4: o ON or OFF status o disable switching program 1-4 o o terminate cyclic switching no reaction • enable Memory function • enable a schedule (enabled schedules can be disabled by means of a special command or by receipt of a valid start pulse) 5 SCOPE OF FUNCTIONS 5.1 Conventional Decoder 5.1.1 Number of Switching Commands Up to 14 commands can be programmed for each receiver. • 4 ON switching commands or restoration timers • 4 OFF switching commands • 3 commands for cyclic switching • 1 command for time synchronisation (not using VERSACOM) • 1 command for switchover to VERSACOM decoding • 1 command for schedule disabling (not using VERSACOM) 22 March 2011 - Issue 3 Approved By: General Manager Technical Services Page 10 of 17 UNCLASSIFIED UNCONTROLLED COPY IF PRINTED
UNCLASSIFIED OPERATIONAL PROCEDURE - Elster LCR-212 Single Phase Load Control Ripple Receiver Installation and Use CEOP8086 5.1.2 Multiple Switching Commands Of a maximum of 14 commands, 11 can be assigned directly to the output relay. It is possible to assign several commands to the same relay. • 4 ON or 4 OFF switching commands optionally to relays 1 – 4 • 3 cyclic switching commands optionally to relays 1 – 3 • LOOP function to relay 1 or 2 • Memory function to relay 1 or 2 5.1.3 Memory Function The Memory function can only be activated by conventional telegrams and can be assigned to relay 1 or 2. The receiver switching times and positions of the last 24 hours are stored in a schedule for either relay 1 or 2. 5.1.4 LOOP Function The LOOP function serves to ensure increased switching reliability. In this case, a timer runs in the ripple control receiver that independently performs ON/OFF switching operations at specific times within a 24 hour cycle provided no other commands are received. 5.1.5 Timer Function without VERSACOM A timer function can be assigned to the receiver with this function. For each relay, a schedule with 5 ON and 5 OFF switching times each is available to the user. The switching times can be specified in steps of 1 second within the range from 00:00:01 – 23:59:59. 5.2 VERSACOM Decoder 5.2.1 VERSACOM Function The standardised VERSACOM transmission protocol (see draft standard DIN 43861, Part 3) with secured data transmission serves the purpose of remote switching, remote adjustment and remote programming of ripple control receivers. • Synchronisation This function can be used to transmit the current time along with details of the day of the week. In this way, schedules depending on the day of the week can be activated in the receiver. • Schedule Selection Up to 16 different schedules of the addressed object (relay) can be disabled or enabled. • Remote Programming of Schedules When remotely programming the switching times of a schedule in the receiver, the ON and OFF switching times are transmitted as parameters. The schedules are assigned permanently to the object and may consist of several ON/OFF switching times. • ON/OFF Switching Commands The addressed object is switched to ON or OFF with these switching commands. • Wiper Timer Switching Command An object can be activated for a limited time with this command. • Cyclic Switching The addressed object executes a cyclic (periodic) switching action when this command is received. 22 March 2011 - Issue 3 Approved By: General Manager Technical Services Page 11 of 17 UNCLASSIFIED UNCONTROLLED COPY IF PRINTED
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Elster LCR-212 Single Phase Load Control ... - Essential Energy

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