Partlow MRC 7000, Installation & Operation Manual

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4.5.5 TEST 5 KEYPAD/DISPLAY TEST
This test allows the operator to verify that the keys work and that all display elements can be
lighted. No special test equipment is required.
With tSt5 displayed, press and hold the DOWN key, then press the SCROLL key and then
release both keys. The display will go blank. The following code will be displayed while the
corresponding key is pressed:
Key Display
SCROLL SCrL
UP uAro
DOWN dAro
RESET (upper) Autu
RESET (lower) AutL
UP and DOWN (All LED’s and segments lit)
SCROLL and UP (exit)
To exit, press the SCROLL and UP keys simultaneously, tSt5 will be displayed.
4.5.6 TEST 6 RELAY/ SOLID STATE RELAY DRIVER OUTPUT TEST
Allows the operator to verify that the Relay and /or the Solid State Relay Driver output(s) are
working. A volt/ohm meter will be required to test the output.
With tSt6 displayed, press and hold the DOWN key, then press the SCROLL key. oFF will be
displayed. For SPST Relay outputs, connect the meter across the relay output in the ohm
scale. For SPDT Relay outputs, connect the meter across the N.O. and COM output in the
ohm scale. The meter should read continuity with the relay on and infinity when the relay is
off. For SSR Driver outputs, connect the meter across the output in the Volt DC scale. The
meter should read 5 VDC when the SSR driver is on and 0 VDC when the driver is off. Press
and release the DOWN key to advance through the following sequence:
RELAY ON RELAY ON
DISPLAY SPST SPDT
rLYA A A
rLYb B B
rLYC C C
rLYd D D
rLYE E None
rLYF F None
rLYg G G
rLYH H H
oFF None None
To exit, press the SCROLL key and tSt6 will be displayed. The existence of Relay and
Solid State Relay Driver output(s) is dependent upon the hardware configuration.
4.5.7 TEST 7 CURRENT OUTPUT TEST
This test allows the operator to verify that the current output(s) are functioning properly or will
allow the selection of an output value for testing of associated equipment. A milliamp meter is
required for testing.
With tSt7 displayed press and hold the DOWN key, then press the SCROLL key. The display
will indicate CurA, for the first current output. By pressing the DOWN key, the instrument will
advance through the selection sequence of Curb, CurC, Curd, and then back to CurA.
Choose the desired output to be tested and connect the milliamp meter across the output
terminals being tested. Be sure to observe the proper polarity when connecting the meter.
Terminal 1 is positive and terminal 2 is negative. Press the SCROLL key and the display will
indicate 4 milliamps. Use the UP and/or DOWN key to increase or decrease the current
output in 1 mADC steps from 0 to 20 mADC. (Continued on next page)