Carrier AERO 39MN Installation, Start-Up And Service Instructions Manual page 162

Indoor and weathertight outdoor air handlers
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FAULT CODE
FAULT NAME IN PANEL
1
OVERCURRENT
2
DC OVERVOLT
3
DEV OVERTEMP
4
SHORT CIRC
5
OVERLOAD
6
DC UNDERVOLT
7
AI1 LOSS
8
AI2 LOSS
9
MOT OVERTEMP
10
PANEL LOSS
11
ID RUN FAIL
12
MOTOR STALL
13
RESERVED
14
EXT FAULT 1
15
EXT FAULT 2
16
EARTH FAULT
17
UNDERLOAD
18
THERM FAIL
19
OPEX LINK
20
OPEX PWR
21
CURR MEAS
22
SUPPLY PHASE
23
RESERVED
24
OVERSPEED
25
RESERVED
26
DRIVE ID
27
CONFIG FILE
Table 41 — Fault Codes
DESCRIPTION AND RECOMMENDED CORRECTIVE ACTION
Output current is excessive. Check for excessive motor load, insufficient acceleration time
(parameters 2202 ACCELER TIME 1, default 30 seconds), or faulty motor, motor cables or
connections.
Intermediate circuit DC voltage is excessive. Check for static or transient over voltages in
the input power supply, insufficient deceleration time (parameters 2203 DECELER TIME 1,
default 30 seconds), or undersized brake chopper (if present).
Drive heat sink is overheated. Temperature is at or above 115 C (239 F). Check for fan fail-
ure, obstructions in the airflow, dirt or dust coating on the heat sink, excessive ambient
temperature, or excessive motor load.
Fault current. Check for short-circuit in the motor cable(s) or motor or supply disturbances.
Inverter overload condition. The drive output current exceeds the ratings.
Intermediate circuit DC voltage is not sufficient. Check for missing phase in the input
power supply, blown fuse, or under voltage on main circuit.
Analog input 1 loss. Analog input value is less than AI1 FLT LIMIT (3021). Check source
and connection for analog input and parameter settings for AI1 FLT LIMIT (3021) and 3001
AI<MIN FUNCTION.
Analog input 2 loss. Analog input value is less than AI2 FLT LIMIT (3022). Check source
and connection for analog input and parameter settings for AI2 FLT LIMIT (3022) and 3001
AI<MIN FUNCTION.
Motor is too hot, as estimated by the drive. Check for overloaded motor. Adjust the param-
eters used for the estimate (3005 through 3009). Check the temperature sensors and
Group 35 parameters.
Panel communication is lost and either drive is in local control mode (the control panel dis-
plays LOC), or drive is in remote control mode (REM) and is parameterized to accept start/
stop, direction or reference from the control panel. To correct, check the communication
lines and connections. Check parameter 3002 PANEL COMM ERROR, parameters in
Group 10: Command Inputs and Group 11: Reference Select (if drive operation is REM).
The motor ID run was not completed successfully. Check motor connections.
Motor or process stall. Motor is operating in the stall region. Check for excessive load or
insufficient motor power. Check parameters 3010 through 3012.
Not used.
Digital input defined to report first external fault is active. See parameter 3003 EXTERNAL
FAULT 1.
Digital input defined to report second external fault is active. See parameter 3004 EXTER-
NAL FAULT 1.
The load on the input power system is out of balance. Check for faults in the motor or
motor cable. Verify that motor cable does not exceed maximum specified length.
Motor load is lower than expected. Check for disconnected load. Check parameters 3013
UNDERLOAD FUNCTION through 3015 UNDERLOAD CURVE.
Internal fault. The thermistor measuring the internal temperature of the drive is open or
shorted. Contact Carrier.
Internal fault. A communication-related problem has been detected between the OMIO
and OINT boards. Contact Carrier.
Internal fault. Low voltage condition detected on the OINT board. Contact Carrier.
Internal fault. Current measurement is out of range. Contact Carrier.
Ripple voltage in the DC link is too high. Check for missing main phase or blown fuse.
Not used.
Motor speed is greater than 120% of the larger (in magnitude) of 2001 MINIMUM SPEED
or 2002 MAXIMUM SPEED parameters. Check parameter settings for 2001 and 2002.
Check adequacy of motor braking torque. Check applicability of torque control. Check
brake chopper and resistor.
Not used.
Internal fault. Configuration block drive ID is not valid.
Internal configuration file has an error. Contact Carrier.
161

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