RFL 9508 PLC-TT
RFL Electronics Inc.
September 5, 2012
18
(973) 334-3100
TESTING
When the RFL PLC-TT modules have been configured and installed, they should be tested for proper
operation before they are placed in service.
EQUIPMENT REQUIRED
A serial terminal capable of accessing the RFL 9508 system
A source of keying voltage equal to the keying voltage to be used in service An indicator capable of
detecting operation of the trip outputs
TEST PROCEDURE
Once the module has been installed in an operating RFL 9508 system, the disable switch can be place
d
in the enable position.
The connections to any trip outputs should be disconnected before
proceeding with this test
.
The status values of the PLC-TT should indicate that the module is not in CRC or Address alarm an
d
that the ping pong value is less than the alarm limit
.
The alarm LED on the front panel should be off
.
When a keying voltage is applied to any input, the appropriate LEDs on the local and remote unit
s
should illuminate. The trip output contacts should close
.
If the appropriate LEDs and trip outputs respond as expected, the module is ready to put into service.