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 • OFF Switching Command + Work Schedule Disabling This command serves to switch all addressed objects to the OFF position and to disable the associated schedules. • Receiver Deactivation (OUT of Service) Receivers can be deactivated with this command, i.e. they no longer react to arriving remote switching and remote programming commands. Equally, all running work schedules are disabled and all relays are deactivated. • Receiver Activation (IN Service) Deactivated receivers can be activated again with this command. • Test Command This command is purely for test purposes. 5.2.2 Timer Function with VERSACOM Up to 32 work schedules containing several ON and OFF switching times can be defined for each receiver within the range from 00:00:01 – 24.00.00. The work schedules are optionally assigned to relays 1 – 4. It is also possible to activate work schedules in the receiver depending on specific days of the week or public holidays. 5.2.3 Special Features • Correction to the nominal state after a time synchronisation command. After a time synchronisation command has been received, the current nominal status of the relays belonging to all currently active work schedules is corrected in the receiver. • Correction to the nominal state after a work schedule selection. After a work schedule selection command has been received, enabling or disabling of specific temperature-dependent work schedules, all currently active work schedules are corrected to the current nominal status. • Emergency running function. If all work schedules in the receiver are disabled during load control, it is possible to assign a work schedule to each relay which is then enabled under the following two conditions: enabling only if all work schedules are disabled and a transmitter failure (SAS) is also detected. • Dynamic work schedule processing. It is possible to specify the number of work schedules and the number of switching time pairs when defining parameters. 6 RIPPLE CONTROL SYSTEMS The LCR212 receiver is capable of processing the following ripple control protocols: • conventional protocols Identifier System 0 Zellweger 180 second 1 L & G S 50 2 RWE 3 L & G B telegram 4 Zellweger 60 seconds 5 Pulsadis (CDC or EDF) 6 Ricontic S 7 Ricontic B 22 March 2011 - Issue 3 Approved By: General Manager Technical Services Page 12 of 17 UNCLASSIFIED UNCONTROLLED COPY IF PRINTED
UNCLASSIFIED OPERATIONAL PROCEDURE - Elster LCR-212 Single Phase Load Control Ripple Receiver Installation and Use CEOP8086 8 Zellweger DECABIT 9 L & G S 52 10 L & G S 56 11 ZPA • the secure VERSACOM protocol 7 RECEIVER STATUS The following receiver status information is stored in the microcontroller's EEPROM and RAM and, using a special adaptor, can be read out through the serial interface by a PC or handheld unit. • Number of switching actions executed The number of switching actions executed is counted separately for each relay and is stored in the RAM. • Number of test transmissions Specific test commands can be defined for testing purposes. The number of commands received is stored in the RAM. • Last telegram received The pulse pattern of the last telegram received is stored in the RAM. • Signal level of the AF voltage The signal level of the AF voltage of the last received telegram is measured with an accuracy of +/- 10 % and is stored in the RAM. • Signal absence sensing The number of detected transmitter failures is counted and stored in the RAM. All status information is stored in the microcontroller's internal RAM and is cleared in the event of a power failure. 8 MECHANICAL DESIGN The LCR212 ripple control receiver can be used for mounting on a meter board or with the optional meter mounting adaptor, on a meter terminal cover. The electronic circuitry is mounted on an PCB. The board is covered by a PCB holder, thus providing shock hazard protection even when the cover of the receiver is open. The receiver can be equipped with up to 3 relays, counted 1-2-3 from left to right. The bistable 40A output relays are of the plug-in type. 2 connection terminals for wires up to a diameter of 10 mm² are available for each relay. 9 PROGRAMMING AND TEST EQUIPMENT To program the receiver, its RS 232 serial interface is connected either via an optical probe or an electrical adaptor to a PC or a hand-held programmer LCP. All receiver parameters such as the frequency, ripple control system and other user-defined data are transferred to the microcontroller's EEPROM in this way. 22 March 2011 - Issue 3 Approved By: General Manager Technical Services Page 13 of 17 UNCLASSIFIED UNCONTROLLED COPY IF PRINTED
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Elster LCR-212 Single Phase Load Control ... - Essential Energy

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