J38D01 - 4 -
1. INSTALLATION
Before installation:
•
Read the user manual carefully, determine the correct connection diagram.
•
Remove all connectors and mounting brackets from the unit, then pass the unit through
the mounting opening.
•
Put mounting brackets and tighten. Do not tighten too much, this can brake the
enclosure.
•
Make electrical connections with plugs removed from sockets, then place plugs to their
sockets.
•
Note that the power supply terminal is separated from measurement terminals.
Below conditions may damage the device:
•
Incorrect connections.
•
Incorrect power supply voltage.
•
Voltage at measuring terminals beyond specified range.
•
Current at measuring terminals beyond specified range.
•
Connecting or removing data terminals when the unit is powered-up.
•
Overload or short circuit at relay outputs
•
Voltage applied to digital inputs over specified range.
•
High voltage applied to communication port.
Below conditions may cause abnormal operation:
•
Power supply voltage below minimum acceptable level.
•
Power supply frequency out of specified limits
•
Phase order of voltage inputs not correct.
•
Current transformers not matching related phases.
•
Current transformer polarity incorrect.
