Honeywell Excel 10 W7752D User Manual page 33

Name of alarm or alarm bit
No Alarm/Return to Normal:
RETURN_TO_NORMAL
ALARM_NOTIFY_DISABLED
ALM_NO_ALARM
FCU Alarms:
ALM_NODE_OFF
ALM_FROST
ALM_INVALID_SETPNT
ALM_TEMP_SENSOR_FAIL
ALM_SETPNT_KNOB_FAIL
ALM_FAN_SPEED_SW_FAIL
ALM_FAN_FAILURE
ALM_COMFAIL_SPACE_TEMP
ALM_COMFAIL_HVACMODE
ALM_COMFAIL_SETPTOFFS
ALM_COMFAIL_SCHEDOCC
ALM_COMFAIL_DLC
ALM_COMFAIL_TEMPRESET
ALM_COMFAIL_ODTEMP
ALM_COMFAIL_OCCSENSOR
ALM_COMFAIL_WINDOW
ALM_COMFAIL_MANHEAT
ALM_COMFAIL_MANCOOL
ALM_HW_SW_MISMATCH
EXCEL 10 FCU CONTROLLER LNS PLUG-INS USER GUIDE
Table 24. Excel 10 FCU Controller alarms.
alarm type
number
128 Return to no error after being in an error condition. This code is added
numerically to another alarm code to indicate that the error condition has
returned to normal.
255 The alarm reporting has been turned OFF by the nviManualMode
=SUPPRESS_ALARMS. No more alarms are reported until
nviManualMode turns ON alarm reporting or upon application restart.
0 No errors since last application restart; initial condition
1 The control algorithm has stopped due to controller disabled, or in test
mode, or other conditions
2 The space temperature is below the frost alarm limit. The alarm condition
remains until the temperature exceeds the alarm limit plus hysteresis.
3 One of the setpoints is not in the valid range
4 Temperature sensor failed
5 Remote setpoint potentiometer failed
6 Fan speed switch failed
7 Fan is commanded to be ON, but the air flow detector input does not
detect the fan running.
8 nviSpaceTemp is bound and has failed in receiving an update within its
specified FAILURE_DETECT_TIME
9 nviApplicMode is bound and has failed in receiving an update within its
specified FAILURE_DETECT_TIME
10 nviSetPtOffset is bound and has failed in receiving an update within its
specified FAILURE_DETECT_TIME
11 nviTodEvent is bound and has failed in receiving an update within its
specified FAILURE_DETECT_TIME
12 nviDlcShed is bound and has failed in receiving an update within its
specified FAILURE_DETECT_TIME
13 nviTempReset is bound and has failed in receiving an update within its
specified FAILURE_DETECT_TIME
14 nviOdTemp is bound and has failed in receiving an update within its
specified FAILURE_DETECT_TIME
15 nviSensorOcc is bound and has failed in receiving an update within its
specified FAILURE_DETECT_TIME
16 nviWindow is bound and has failed in receiving an update within its
specified FAILURE_DETECT_TIME
17 nviManHeat is bound and has failed in receiving an update within its
specified FAILURE_DETECT_TIME
18 nviManCool is bound and has failed in receiving an update within its
specified FAILURE_DETECT_TIME
19 The software is not compatible with the hardware configuration specified
by the hardware configuration resistor value. Compatibility is checked
only once after application restart.
31
meaning of alarm code or alarm bit
EN2B-0285GE51 R0909