Thermo King SR-2 SmartReefer2, Руководство по диагностике

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Section 6 – SR-2 Service Procedure A48A
Outputs
Output Description
7EH With 12-24 VDC is supplied, then outputs 7EB and 7EC will be at 12-24 VDC.
7EB If phase rotation is L1, L2, L3 then this wire will provide 12-24 VDC to energize the appropriate phase
rotation contactor. The 7EC wire is interlocked to prevent both phase contactors from being
energized at once.
7EC If phase rotation is L1, L3, L2 then this wire will provide 12-24 VDC to energize the appropriate phase
rotation contactor. The 7EB wire is interlocked to prevent both phase contactors from being
energized at once.
ER This wire will output 12-24 VDC 2 to 4 seconds after the voltage rises above 180 volts AC and all
three phases are present. If the voltage drops below 160 volts AC or a phase is lost and the
condition remains for 8 to 10 seconds, the output is turned off. The module continues to monitor and
will again output 12-24 VDC 2 to 4 seconds after the power returns to normal (voltage rises above
180 volts AC and all three phases are present).
Connector Pinout
Pin Wire Description
1 #8F Power to Module
2 CH Chassis ground
3 ER Power OK
4 7EH Switches the 7EC and 7EB from grounding to power logic
5 7EB Phase A-B-C
6 7EC Phase A-C-B
7 Unused
8 Unused
9 Unused
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P41RA48A 30 January 2005