Trane CVRC-M-1D, Руководство пользователя

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98 CVRC-M-1D
Diagnostics Tables
Adaptive Frequency Drive
Fault Relay Open MMR Any Start
and Run
Mode The Adaptive Frequency Drive fault relay is Open See Adapt. Frequency
Drive Service Bulletin
At Speed Input Opened MMR All Running
Modes a. The At Speed input was found to be opened with the
compressor motor running after successfully obtaining at speed
condition.
b.Applies only to Solid State Starters. Check End of Limt/At
Speed Input
At Speed Input Shorted MMR Pre-Start a. Using either a Solid State Starter or an Adaptive Frequency
Drive, the Up to Speed/At Speed input was found to be shorted
before the compressor was started.
b. Applies only to Solid State Starters and Adaptive Frequency
Drives. Check End of Limt/At
Speed Input
Bearing Temp Sensor #1 MMR All Open or Short, only if this option is enabled at the Clear
Language Display Check Sensor, Wiring and
Connections
Bearing Temp Sensor #2 MMR All Open or Short, only if this option is enabled at the Clear
Language Display Check Sensor, Wiring and
Connections
Check Clock IFW All On loss of power the clock does not keep time if there is an
extended power loss (greater than 15 seconds). This diag. is
also generated to alert the operator to check the clock. Check Main Power Supply,
Reset Clock
Chilled Water Flow Lost MAR All modes
except
STOP (00)
and
EXTERNAL
STOP (100) a. The chilled water flow switch input was open for more than
6-10 contiguous seconds.
b. 6-10 seconds of contiguous flow clears this diagnostic. Check Pump, Valves, Flow
Switch
Chiller Mod Ref Voltage Calibration IFW All An improper reference voltage was detected at the Chiller
Module. A 2.5 vdc reference is used to calibrate the
non-ratiometric analog I/O such as 2-10 vdc and 420 ma inputs
as well as PWM Analog outputs. The micro checks to see that
the A/D value falls within an acceptable range. Check Chiller Module
Voltages
Chiller: Loss of Comm with TCI IFW All The Tracer was setup as “Installed” at the CLD and the chiller
module lost communications with the TCI (comm 3 or comm4)
module for 15 contiguous seconds. Check IPC
Wiring/Connections
Chiller: Loss of Comm with Local
CLD
Note: As implemented this is a
latching IFW diagnostic. That is, once
generated it cannot be regenerated
until a manual reset is done. IFW-
AR All The chiller module lost communications with the LCLD module
for 15 contiguous seconds. Check IPC
Wiring/Connections
Chiller: Loss of Comm with Purge IFW All The chiller module lost communications with the Purge module
for 15 contiguous seconds. Check IPC
Wiring/Connections
Chiller: Loss of Comm with Rfgt
Monitor CTV All The chiller module lost communications with the Refrigerant
Monitor for 15 contiguous seconds. Check IPC
Wiring/Connections
Chiller: Loss of Comm with Starter MMR All The chiller module lost communications with the Starter module
for 15 contiguous seconds. Check IPC
Wiring/Connections
Chiller: Loss of Comm with Stepper
#1 MMR All The chiller module lost communications with the Stepper #1
module for 15 contiguous seconds. Check IPC
Wiring/Connections
Chiller Mod Off-Brd 5V Range IFW All An improper Off Board 5v voltage was detected at the Chiller
Module. A 5 vdc is used for off-board devices such as the
pressure transducers. The micro checks to see that the A/D
value falls within an acceptable range. Check Chiller Module
Voltages
Chlr Sat Cond Temp Sensor
(Purge)
As Sensed by the Purge module
in Retrofit applications) IFW All Open or Shorted Sensor
a. Applies to Retrofit applications of the Purge
Only. Does not apply to UCP2 applications.
b. IFW to the chiller, MMR to the Purge. Purge Inop: See Purge O
& M Manual
Diagnostic Description Diag
Type
Diag. Active
Modes
(Non-Active
Modes)
Cause Help Message