Trane Ascend ACR Series User Manual

AC-SVX001A-EN
87
Table 26. Diagnostics — AFD (continued)
Diagnostic
Name and
Source
Affects
Target
Severity
Persistence
Active
Modes
[Inactive
Modes]
Criteria
Reset
Level
AFD 2A Gate
Kill Active
Circuit Immediate NonLatch All
The respective drive’s gate-kill circuitry was
activated (open circuit). The respective compressor’s
High Pressure Cutout Switch is wired into this circuit,
and will cause an immediate shutdown of the drive
and compressor in the event of an HPC trip. A 2nd
separate HPC diagnostic will occur in conjunction
with this diagnostic – see details of the Main
Processor Diagnostic “High Pressure Cutout” below
(that is latching).
Local
AFD 1A Input
Transformer or
Filter High
Temp
Circuit
Immediate
Shutdown
Latch All
The AFD is tripped by Input Transformer or Filter
High Temperature Cutout.
Local
AFD 2A Input
Transformer or
Filter High
Temp
Circuit
Immediate
Shutdown
Latch All
The AFD is tripped by Input Transformer or Filter
High Temperature Cutout.
Local
AFD 1A Low
Rotor Flux
Feedback
Circuit
Immediate
(decel)
Latch
Running
The estimated rotor flux dropped below the minimum
threshold. Suspect motor demagnetization.
Local
AFD 2A Low
Rotor Flux
Feedback
Circuit
Immediate
(decel)
Latch
Running
The estimated rotor flux dropped below the minimum
threshold. Suspect motor demagnetization.
Local
Main Processor Diagnostics
Table 27. Diagnostics — main processor
Diagnostic
Name
Affects
Target
Severity
Persistence
Active
Modes
[Inactive
Modes]
Criteria
Reset
Level
Drive Cooling
Temp Sensor –
Ckt2
Circuit Normal Latch All Bad Sensor or LLID. Remote
BAS
Communica-
tion Lost
None
Special Action
NonLatch All
The BAS was setup as "installed" at the MP and the
Lontalk LCIC lost communications with the BAS for
15 contiguous minutes after it had been established.
Refer to Section on Setpoint Arbitration to determine
how setpoints and operating modes may be affected
by the comm loss. The chiller follows the value of the
Tracer Default Run Command which can be
previously written by Tracer and stored nonvolatilely
by the MP (either use local or shutdown). Note that
this diagnostic is never operational for BacNet
Communication interface (BCIC) and only
operational with a LonTalk Communication interface
(LCIC) if so configured by the BAS or Tracer system.
Remote
BAS Failed to
Establish
Communica-
tion
None
Special Action
NonLatch
At power-up
The BAS was setup as "installed" and the BAS did not
communicate with the Lontalk LCIC within 15
minutes after chiller controls power-up. Refer to
Section on Setpoint Arbitration to determine how
setpoints and operating modes may be effected.
Note that this diagnostic is never operational for
BacNet Communication interface (BCIC) and only
operational with a LonTalk Communication interface
(LCIC) if so configured by the BAS or Tracer system.
Remote
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Trane Ascend ACR Series Specifications

General

Brand	Trane
Model	Ascend ACR Series
Category	Chiller
Language	English