Channel Tests - GE L30 Instruction Manual

TESTING
The force contact outputs feature provides a method of performing checks on the function of all contact outputs.
While in Forcible test mode, the relay contact outputs can be pre-programmed to respond in the following ways:
• If set to "Normal," the contact output remains fully operational. It operates when its control operand is logic 1 and
resets when its control operand is logic 0.
• If set to "Energized," the output closes and remains closed while the operand selected by the
setting is On, regardless of the status of the operand configured to control the output contact. While the selected
operand is Off, the output behaves as it does when in service.
• If set to "De-energized," the output opens and remains opened while the operand selected by the
setting is On, regardless of the status of the operand configured to control the output contact. While the selected
operand is Off, the output behaves as it does when in service.
• If set to "Freeze," the output retains its position at the instant before the
operand selected by the
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

5.11.6 Channel tests

SETTINGS  TESTING  CHANNEL TESTS
 CHANNEL TESTS

This function checks the communications established by both relays.
 LOCAL LOOPBACK

 REMOTE LOOPBACK

See the Commissioning chapter for information on using the channel tests.
5-322
FORCE Cont Op 2

: Normal
FORCE Cont Op xx

: Normal
setting was On, regardless of later changes in the status of the operand
TEST MODE FORCING
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
Range: Normal, Energized, De-energized, Freeze

Range: Normal, Energized, De-energized, Freeze
TEST MODE FUNCTION
See below
See below
Range: Yes, No
Range: 1, 2
Range: Yes, No
Range: 1, 2
L30 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS
TEST MODE FORCING
TEST MODE FORCING
was Forcible and the