Trane CVRC-M-1D, Руководство пользователя

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108 CVRC-M-1D
Diagnostics Tables
Diagnostic
Description Diag
Type
Diag Active
Modes
(Non-active
Modes)
Cause Help Message
Starter Fault Type I MMR Starting
a. This is a specific starter test where 1M is closed first
and a check is made to ensure that there are no
currents detected by the Cts. If currents are detected
when only 1M is closed first at start, then one of the
other contactors is shorted.
b. This test applies only to Y-Delta Closed Transition
Starters.
See Troubleshooting Service Bulletin
CVHE-SB-32
Starter Fault Type II MMR Starting
a. This is a specific starter test where the Shorting
Contactor(s) is individually energized and a check is
made to ensure that there are no currents detected by
the Cts. If current is detected when only sincerely is
energized at Start, then 1M is shorted.
b. This test in a. Above applies to all forms of starters
(Note: It is understood that many starters do not
connect to the Shorting Contactor).
See Troubleshooting Service Bulletin
CVHE-SB-32
Starter Fault Type III MMR Starting
As part of the normal start sequence to apply power to
the compressor the Shorting Contactor(s) and then the
Main Contactor (1M) were energized. 1.6 seconds later
there were no currents detected by the Cts for the last
1.2 seconds on all three phases.
b. This test in a. Above applies to all forms of starters
except Adaptive Frequency ( Note: It is understood that
many starters do not connect to the Shorting
Contactor).
c. For Adaptive Frequency Drive, TBD
See Troubleshooting Service Bulletin
CVHE-SB-32
Starter Mod Ref
Voltage Calibration
IFW All
An improper reference voltage was detected at the
Starter Module. A 2.5 vdc reference is used to calibrate
the non-rationmetric analog I/O such as 2-10 vdc and
4-20 ma inputs as well as PWM Analog outputs. The
micro checks to see that the A/D value falls within an
acceptable range.
See Troubleshooting Service Bulletin
CVHE-SB-32
Starter: Loss of
Comm with Chiller
MMR All
The starter module lost communications with the chiller
module for 15 contiguous seconds.
Check IPC Wiring/Connections