219
04701 Loss of Communi-
cation with VLT
Drive Board #1
Alarm will trip if communication with
Circuit A Compressor VFD is lost
Circuit A will be shut
down immediately
Automatic when the commu-
nication is reestablished
If this condition is encountered, check the fol-
lowing items for faults:
• power supply to the compressor or fan
drive board
• local equipment network (LEN) wiring
• check VFD parameters against list
• check VFD address
• check unit configuration for correct unit
size, low ambient selection, voltage, fre-
quency and tier
04702 Loss of Communi-
cation with VLT
Drive Board #2
Alarm will trip if communication with
Circuit B Compressor VFD is lost
Circuit B will be shut
down immediately
Automatic when the commu-
nication is reestablished
04704 Loss of Communi-
cation with Fan
Drive Board #4
Alarm will trip if communication with
Circuit A Fan A1 VFD is lost
Circuit A will be shut
down immediately
Automatic when the commu-
nication is reestablished
04705 Loss of Communi-
cation with Fan
Drive Board #5
Alarm will trip if communication with
Circuit A Fan A2 VFD is lost
Circuit A will be shut
down immediately
Automatic when the commu-
nication is reestablished
04707 Loss of Communi-
cation with Fan
Drive Board #7
Alarm will trip if communication with
Circuit B Fan B1 VFD is lost
Circuit B will be shut
down immediately
Automatic when the commu-
nication is reestablished
04708 Loss of Communi-
cation with Fan
Drive Board #8
Alarm will trip if communication with
Circuit B Fan B2 VFD is lost
Circuit B will be shut
down immediately
Automatic when the commu-
nication is reestablished
04901 Loss of Communi-
cation with SIOB
Board A
Alarm will trip if communication with
SIOB-A Board is lost
Unit will be stopped
immediately
Automatic when the commu-
nication is reestablished
If this condition is encountered, check the fol-
lowing items for faults:
• power supply to the SIOB
• local equipment network (LEN) wiring
• confirm unit configuration
• check board addressing DIP switches
04902 Loss of Communi-
cation with SIOB
Board B
Alarm will trip if communication with
SIOB-B Board is lost
Circuit B will be shut
down immediately
Automatic when the commu-
nication is reestablished
55001 Database module
failure
Tested when the unit is ON or OFF.
If database module returns an error
alarm will be tripped
Unit will be stopped Automatic Software malfunction. Power cycle the display.
56001 Lenscan module
failure
Tested when the unit is ON or OFF.
If lenscan module returns an error
alarm will be tripped
Unit will be stopped Automatic Software malfunction. Power cycle the display.
57020 Main EXV step-
per motor failure -
Circuit A
Criteria For Trip
Tested when unit is ON or OFF. If the
SIOB detects an EXV motor is not in
the commanded position, the alarm is
set
Circuit A shall be
stopped
Manual • Check EXV connections on SIOB
• Check connection on EXV
57021 Main EXV step-
per motor failure -
Circuit B
Criteria For Trip
Tested when unit is ON or OFF. If the
SIOB detects an EXV motor is not in
the commanded position, the alarm is
set
Circuit B shall be
stopped
Manual • Check EXV connections on SIOB
• Check connection on EXV
57023 Main ECO step-
per motor failure -
Circuit A
Criteria For Trip
Tested when unit is ON or OFF. If the
SIOB detects an ECO EXV motor is
not in the commanded position, the
alarm is set
Circuit A shall be
stopped
Manual • Check ECO EXV connections on SIOB
• Check connection on ECO EXV
57024 Main ECO step-
per motor failure -
Circuit B
Criteria For Trip
Tested when unit is ON or OFF. If the
SIOB detects an ECO EXV motor is
not in the commanded position, the
alarm is set
Circuit B shall be
stopped
Manual • Check ECO EXV connections on SIOB
• Check connection on ECO EXV
60001 VI Solenoid Diag-
nostic Test Failure
- Circuit A
Tested when unit is ON.VI is cycled from
ON to OFF and VFD power is measured.
If power delta between ON/OFF of the VI
solenoid does not exceed the value in
SERVICE1_VIPwrChk then this alarm is
set.
Alert Only Manual • Check VI solenoid for proper operation
61001 VI Solenoid Diag-
nostic Test Failure
- Circuit B
Tested when unit is ON.VI is cycled from
ON to OFF and VFD power is measured.
If power delta between ON/OFF of the VI
solenoid does not exceed the value in
SERVICE1_VIPwrChk then this alarm is
set.
Alert Only Manual • Check VI solenoid for proper operation
07001 Illegal configura-
tion
The alarm will be generated if one of
these conditions is met:
1. Unit Capacity (Main Menu
Config-
uration Menu
Factory Parame-
ters) is set to 0 or something other
than 140, 160, 180, 200, 225, 250,
275, 300, 325, 350, 400, 450, or 500.
2. Power Supply Voltage (Main Menu
Configuration Menu
Factory
Parameters) is set to something
other than 200, 208/230, 380, 400,
415, 440, 460, or 575.
3. Low Ambient Option (STD) (Main
Menu
Configuration Menu
Factory Parameters) is 1 (YES) on
a mid or high tier unit (10th position
of model number is “M” or “H”).
4. Low Ambient Option (STD) (Main
Menu
Configuration Menu
Factory Parameters) is 1 (YES) on
a 30XV140 standard tier unit (10th
position of model number is “S”).
5. DX Evaporator Installed (Main
Menu
Configuration Menu
Factory Parameters) is 1 (YES) for
30XV350, 30XV400, 30XV450, or
30XV500.
Unit is not allowed to
start
Automatic when config-
ured correctly
If this condition is encountered, confirm unit
configuration
Table 168 — Alarm Details by Code (cont)
ALARM
CODE
ALARM NAME
CRITERIA
FOR TRIP
ACTION TAKEN
BY CONTROL
RESET
METHOD
POSSIBLE CAUSES/CORRECTIVE ACTIONS
To Next Page
Loading...
