Fault Codes - Honeywell HVAC400x Applications Manual

11.3

Fault Codes

Fault code Fault ID Fault name
Overcurrent (hardware
1
fault)
1
Overcurrent (software
2
fault)
Overvoltage (hardware
10
fault)
2
Overvoltage (software
11
fault)
Earth fault (hardware
20
fault)
3
21 Earth fault (software fault)
5 40 Charging switch
7 60 Saturation
Table 70. Fault codes
Possible cause
Its cause can be one of these.
• a sudden heavy load
increase;
• a short circuit in the motor
cables;
• the motor is not the correct
type.
The DC-link voltage is higher
than the limits.
• too short a deceleration time;
• high overvoltage spikes in the
supply;
• Start/Stop sequence too fast.
The measurement of current tells
that the sum of the motor phase
current is not zero.
• an insulation malfunction in
the cables or the motor.
The charging switch is open,
when the Start command is
given.
• operation malfunction;
• defective component.
Defective component
161
HVAC400X – APPLICATION MANUAL
Remedy
Check the loading.
Check the motor.
Check the cables and connections.
Check the ramp times.
Set the deceleration time longer.
Activate the overvoltage controller.
Check the input voltage.
Check the motor cables and the motor.
Reset the fault and restart the drive.
If the fault occurs again, ask instructions
from the distributor near to you.
This fault cannot be reset from the
control panel.
Switch off the power. DO NOT
RESTART THE DRIVE or CONNECT
THE POWER!
Ask instructions from the factory.
If this fault shows together with F1,
check the motor cables and motor.
EN2B-0417GE51 R0719