174
APPENDIX C — VFD INFORMATION (cont)
Table D — Alarm Codes
*This alarm is not indicated by a relay output, even when the relay output is configured to indicate alarm conditions, parameter 1401 RELAY OUT-
PUT = 5 (ALARM) or 16 (FLT/ALARM).
Check the heat sink as follows (when necessary):
1. Remove power from drive.
2. Remove the cooling fan.
3. Blow clean compressed air (not humid) from bottom to top
and simultaneously use a vacuum cleaner at the air outlet
to trap the dust. If there a risk of the dust entering adjoining
equipment, perform the cleaning in another room.
4. Replace the cooling fan.
5. Restore power.
Table E — Maintenance Intervals
ALARM
CODE
ALARM NAME
IN PANEL
DESCRIPTION AND RECOMMENDED CORRECTIVE ACTION
2001
—
Reserved
2002
—
Reserved
2003
—
Reserved
2004
DIR LOCK
The change in direction being attempted is not allowed. Do not attempt to change the direction of motor rota-
tion, or Change parameter 1003 DIRECTION to allow direction change (if reverse operation is safe).
2005
I/O COMM
Field bus communication has timed out. Check fault setup (3018 COMM FAULT FUNC and 3019 COMM
FAULT TIME). Check communication settings (Group 51 or 53 as appropriate). Check for poor connections
and/or noise on line.
2006
AI1 LOSS
Analog input 1 is lost, or value is less than the minimum setting. Check input source and connections. Check
the parameter that sets the minimum (3021) and the parameter that sets the Alarm/Fault operation (3001).
2007
AI2 LOSS
Analog input 2 is lost, or value is less than the minimum setting. Check input source and connections. Check
parameter that sets the minimum (3022) and the parameter that sets the Alarm/Fault operation (3001).
2008
PANEL LOSS
Panel communication is lost and either the VFD is in local control mode (the control panel displays HAND), or
the VFD is in remote control mode (AUTO) and is parameterized to accept start/stop, direction or reference
from the control panel. To correct, check the communication lines and connections, Parameter 3002 PANEL
LOSS, and parameters in groups 10 COMMAND INPUTS and 11 REFERENCE SELECT (if drive operation
is REM).
2009
—
Reserved
2010
MOT OVERTEMP
Motor is hot, based on either the VFD estimate or on temperature feedback. This alarm warns that a Motor
Overload fault trip may be near. Check for overloaded motor. Adjust the parameters used for the estimate
(3005 through 3009). Check the temperature sensors and Group 35 parameters.
2011
UNDERLOAD
Motor load is lower than expected. This alarm warns that a Motor Underload fault trip may be near. Check
that the motor and drive ratings match (motor is NOT undersized for the drive). Check the settings on param-
eters 3013 to 3015.
2012
MOTOR STALL
Motor is operating in the stall region. This alarm warns that a Motor Stall fault trip may be near.
2013*
AUTORESET
This alarm warns that the drive is about to perform an automatic fault reset, which may start the motor. To
control automatic reset, use parameter group 31 (AUTOMATIC RESET).
2014*
AUTOCHANGE
This alarm warns that the PFA autochange function is active. To control PFA, use parameter group 81 (PFA)
and the Pump Alternation macro.
2015
PFA INTERLOCK
This alarm warns that the PFA interlocks are active, which means that the drive cannot start any motor (when
Autochange is used), or a speed regulated motor (when Autochange is not used).
2016
—
Reserved
2017*
OFF BUTTON
This alarm indicates that the OFF button has been pressed.
2018*
PID SLEEP
This alarm warns that the PID sleep function is active, which means that the motor could
accelerate when the PID sleep function ends. To control PID sleep, use parameters
4022 through 4026 or 4122 through 4126.
2019
ID RUN
The VFD is performing an ID run.
2020
OVERRIDE
Override mode is activated.
2021
START ENABLE 1
MISSING
This alarm warns that the Start Enable 1 signal is missing. To control Start Enable 1 function, use parameter
1608. To correct, check the digital input configuration and the communication settings.
2022
START ENABLE 2
MISSING
This alarm warns that the Start Enable 2 signal is missing. To control Start Enable 2 function, use parameter
1609. To correct, check the digital input configuration and the communication settings.
2023
EMERGENCY STOP
Emergency stop is activated.
MAINTENANCE
INTERVAL
Heat Sink Temperature
Check and Cleaning
Every 6 to 12 months (depending
on the dustiness of the environment)
Main Cooling Fan
Replacement
Every five years
Internal Enclosure Cooling
Fan Replacement
Every three years
Capacitor Change
(Frame Size R5 and R6)
Every ten years
HVAC Control Panel
Battery Change
Every ten years
Содержание Carrier Weathermaker 48A2
Страница 105: ...105 Fig 20 Typical Main Control Box Wiring Schematic 48 50A2 A3 A4 A5 Units...
Страница 106: ...106 Fig 21 Typical Auxiliary Control Box Wiring Schematic...
Страница 107: ...107 Fig 22 Typical 2 Stage Gas Heat Wiring Schematic Size 060 Units Shown a48 8357...
Страница 108: ...108 TO NEXT PAGE Fig 23 Typical Staged Gas Heat Wiring Schematic Size 060 Units Shown A48 7296...
Страница 109: ...109 Fig 23 Typical Staged Gas Heat Wiring Schematic Size 060 Units Shown cont A48 8358...
Страница 110: ...110 Fig 24 Typical Electric Heat Control Schematic 50 Series Size 060 Units Shown a50 8228...
Страница 111: ...111 Fig 25 Typical Power Schematic 48 50A2 A3 A4 A5 060 Unit Shown...
Страница 112: ...112 Fig 26 Typical Low Ambient Controls Option Wiring...
Страница 113: ...113 Fig 27 Typical Small Chassis Component Location Size 020 035 Units...
Страница 114: ...114 Fig 28 Typical Large Chassis Component Locations Size 040 060 Units...
Страница 118: ...118 Fig 30 Economizer Control Board ECB1 and VAV Control Board ECB2 A48 7706...
Страница 142: ...142 A48 3733 Fig 56 Main Burner Removal...
Страница 176: ...176 APPENDIX C VFD INFORMATION cont Fig F Internal Enclosure Fan Replacement A48 7716...
