3-36
C70 Capacitor Bank Protection and Control System
GE Multilin
3.3 DIRECT INPUT/OUTPUT COMMUNICATIONS
3 HARDWARE
3
The UR-series C37.94 communication module has six (6) switches that are used to set the clock configuration. The func-
tions of these control switches is shown below.
For the internal timing mode, the system clock is generated internally. therefore, the timing switch selection should be inter-
nal timing for relay 1 and loop timed for relay 2. There must be only one timing source configured.
For the looped timing mode, the system clock is derived from the received line signal. Therefore, the timing selection
should be in loop timing mode for connections to higher order systems.
The IEEE C37.94 communications module cover removal procedure is as follows:
1.
Remove the IEEE C37.94 module (type 2G, 2H, 76, or 77 module):
The ejector/inserter clips located at the top and at the bottom of each module, must be pulled simultaneously in order
to release the module for removal. Before performing this action,
control power must be removed from the relay
.
The original location of the module should be recorded to help ensure that the same or replacement module is inserted
into the correct slot.
2.
Remove the module cover screw.
3.
Remove the top cover by sliding it towards the rear and then lift it upwards.
4.
Set the timing selection switches (channel 1, channel 2) to the desired timing modes (see description above).
5.
Replace the top cover and the cover screw.
6.
Re-insert the IEEE C37.94 module. Take care to ensure that the
correct
module type is inserted into the
correct
slot
position. The ejector/inserter clips located at the top and at the bottom of each module must be in the disengaged posi-
tion as the module is smoothly inserted into the slot. Once the clips have cleared the raised edge of the chassis,
engage the clips simultaneously. When the clips have locked into position, the module will be fully inserted.
842753A1.CDR
Summary of Contents for UR Series C70
Page 2: ......
Page 10: ...x C70 Capacitor Bank Protection and Control System GE Multilin TABLE OF CONTENTS ...
Page 344: ...5 220 C70 Capacitor Bank Protection and Control System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Page 586: ...D 10 C70 Capacitor Bank Protection and Control System GE Multilin D 1 OVERVIEW APPENDIXD D ...
