Channel Tests - GE L90 Instruction Manual

TESTING
configured to control the output contact. While the selected operand is Off, the output behaves as it does when in
service.
On restart, the
their default states.

5.11.6 Channel tests

SETTINGS  TESTING  CHANNEL TESTS
 CHANNEL TESTS

This function checks the communications established by both relays.
 LOCAL LOOPBACK

5
 REMOTE LOOPBACK

See the Commissioning chapter for information on using the channel tests.
5-432
setting and the force contact input and force contact output settings revert to
TEST MODE FORCING
 LOCAL LOOPBACK


 REMOTE LOOPBACK


LOCAL LOOPBACK

FUNCTION: No
LOCAL LOOPBACK

CHANNEL NUMBER: 1
REMOTE LOOPBACK

FUNCTION: No
REMOTE LOOPBACK

CHANNEL NUMBER: 1
See below
See below
Range: Yes, No
Range: 1, 2
Range: Yes, No
Range: 1, 2
L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS