AERCO Modbus Communications Manual - Manual (Page 90)

GF-114
MODBUS
Communication
Appendix A
OMM-0035_0C USER MANUAL Status Messages & Equations
Page 90 of 200 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph.: 800-526-0288 05/18/12
Table A-2: C-More Status And Fault Messages - (Continued)
CODE MESSAGE DESCRIPTION
35
PRG SWTCH
CLOSED
DURING IGNITION
The Purge Position Limit switch on the Air/Fuel valve closed
during ignition.
36
SSOV SWITCH
OPEN
The SSOV switch opened during standby.
37
IGNITION BOARD
COMM FAULT
Communication fault between the Ignition board and the CPU
board.
38 WAIT Prompts the operator to wait.
39
DIRECT DRIVE
SIGNAL FAULT
The direct drive signal is not present or is out of range.
40
REMOTE SETPT
SIGNAL FAULT
The remote setpoint signal is not present or is out of range.
41
OUTDOOR TEMP
SENSOR FAULT
The temperature measured by the Outdoor Air Sensor is out of
range.
42
OUTLET TEMP
SENSOR FAULT
The temperature measured by the Outlet Sensor is out of range.
43
FFWD TEMP
SENSOR FAULT
The temperature measured by the FFWD Sensor is out of range.
44
HIGH WATER
TEMPERATURE
The temperature measured by the Outlet Sensor exceeded the
Temp Hi Limit setting.
45
LINE VOLTAGE
OUT OF PHASE
The High AC voltage is out of phase from the low AC voltage.
46
STEPPER MOTOR
FAILURE
The stepper motor failed to move the valve to the desired position.
47
SETPT LIMITING
ACTIVE
Setpoint temperature has exceeded the maximum allowable
setting.
48
MODBUS COMM
FAULT
The RS485 (Modbus) network information is not present or is
corrupted.