RUN 600 XTPRO: Service & Maintenance Manual - rev. 1.3
Page 6.22
(2) As for point (2) but between pins 3 (signal) and 4 (ground) of connector CN1 on the inverter
interface board.
(3) Place the tester probes between pins 3 (ground) and 9 (signal) of connector CN2 on the
inverter interface board. Under an alarm condition the measured voltage should be 0 Vdc,
under normal conditions it should be +5 Vdc.
(4) As for point (4) but between pins 3 (ground) and 8 (signal) of connector CN1 on the CPU
board.
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