McQuay TSC User Manual

82 OM Centrif Micro ΙΙ-5
Fault
Code
Description Detailed Description of Fault / Possible Solutions
Indicates that communication has been lost with a remote device such as
a remote keypad.
(This fault will normally occur if the remote keypad is disconnected while
the D3 control board is powered up. Only connect and disconnect a
remote keypad when the control power is off.)
Verify that the remote keypad cable has not been damaged and that its
connectors are firmly seated at both the keypad and the D3 Control
board.
F81
SPI
Communication
Fault
Route keypad cables away from high power and/or high noise areas to
reduce possible electrical noise pickup.
Indicates that the starter has lost serial communications. Fault occurs
when the starter has not received a valid serial communications within
the Communication Timeout parameter (FUN 12, P59) defined time.
F82
Modbus Timeout
Fault
Examine remote system for cause of communication loss.
Typically occurs when attempting to run a version of control software that
is incompatible with the D3 control board hardware being used. Verify
that the software is a correct version for the D3 control board being used.
Consult factory for more details.
F94
CPU Error – SW
fault
Fault can also occur if the D3 control has detected an internal software
problem. Consult McQuayService.
The non-volatile user parameter values have been found to be corrupted.
Typically occurs when the D3 control is re-flashed with new software.
F95
CPU Error –
Parameter
EEPROM
Checksum Fault
If fault persists after performing a Factory Parameter reset, consult
McQuay Service.
F96 CPU Error
The D3 control has detected an internal CPU problem. Consult McQuay
Service.
F97
CPU Error – SW
Watchdog Fault
The D3 control has detected an internal software problem. Consult
McQuay Service.
F98 CPU Error
The D3 control has detected an internal CPU problem. Consult McQuay
Service.
F99
CPU Error –
Program EPROM
Checksum Fault
The non-volatile program memory has been corrupted.
Preventive Maintenance
During Commissioning
• Torque all power connections during commissioning, including pre-wired equipment.
• Check all control wiring for loose connections.
After First Month of Operation
• Re-torque all power connections, including pre-wired equipment annually.
• Clean accumulated dust with clean compressed air.
• Inspect cooling fans every three months.
• Clean or replace air vent filters every three months.

McQuay TSC Specifications

General

Brand	McQuay
Model	TSC
Category	Controller
Language	English