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6.2.2 Cautions on Tests
CAUTION
• While the power is on, do not remove/connect the terminal block of the relay unit.
• Before turning on the power, check the following:
- Make sure the polarity and voltage of the power supply are correct.
- Make sure the CT circuit is not open.
• Be careful that the relay is not damaged due to an overcurrent or overvoltage.
• If settings are changed for testing, remember to reset them to the original settings.
Failure to observe any of the precautions above may cause damage or malfunction of the relay.
6.3 Preparations
Test equipment
The following test equipment is required for the commissioning tests.
1 Single-phase current source
1 Three-phase current source
1 power supply
3 AC ammeter
1 Time counter, precision timer
1 PC (not essential)
Relay settings
Before starting the tests, it must be specified whether the tests will use the user's settings or the
default settings.
For the default settings, see the following appendixes:
Appendix D
Appendix H
Visual inspection
After unpacking the product, check for any damage to the relay case. If there is any damage, the
internal module might also have been affected. Contact the vendor.
Relay ratings
Check that the items described on the nameplate on the front of the relay conform to the user's
specification. The items are: relay type and model, AC current and frequency ratings, and auxiliary
supply voltage rating.
Local PC
When using a local PC, connect it with the relay via the USB port on the front of the relay. RSM100
software is required to run the PC.
For the details, see the separate volume "PC INTERFACE RSM100".
Binary Output Default Setting List
Relay Setting Sheet
159
6 F 2 T 0 1 7 2
- Quick Links:
- Inverse Time Overcurrent Protection
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