Honeywell SmartVFD HVAC MR4 User Manual page 161

Honeywell
• 89
Fault
ID Fault name
code
Undervoltage
9
Brake chopper
12
supervision
Drive under-
13
temperature
Drive overtem-
14
perature
Motor stalled
15
Motor overtem-
16
perature
Motor under-
17
load
IGBT tempera-
41
ture
External fault
51 1051
Keypad com-
1052
munication
52
1352
fault
Possible cause
DC-link voltage is under the voltage lim-
its defined.
• most probable cause: too low a
supply voltage
• AC drive internal fault
• defect input fuse
• external charge switch not closed
Fault ID:
80 = Fault
81 = Alarm
• no brake resistor installed
• brake resistor is broken
• brake chopper failure
Fault ID:
110 = Hardware fault
111 = Brake chopper saturation alarm
Too low temperature measured in power
unit's heatsink or board. Heatsink tem-
perature is under -10°C.
Fault ID:
120 = Fault
121 = Alarm
Too low temperature measured in power
unit's heatsink or board. Heatsink tem-
perature is over 100°C.
Fault ID:
120 = Fault
121 = Alarm
Motor stall protection has tripped.
Fault ID:
140 = Fault
Motor overheating has been detected by
drive motor temperature model. Motor is
overloaded.
Fault ID:
150 = Fault
Motor underload protection has tripped.
Fault ID:
160 = Fault
IGBT temperature (unit temperature +
I T) is too high.
2
Fault ID:
400 = Fault
Digital input
The connection between the control key-
pad and drive is broken
HVAC A
PPLICATION
Remedy
In case of temporary supply
voltage break reset the fault
and restart the drive. Check
the supply voltage. If it is ade-
quate, an internal failure has
occurred.
Contact the distributor near to
you.
Check brake resistor and
cabling.
If the these are ok, the chop-
per is faulty. Contact the dis-
tributor near to you.
Check the correct amount and
flow of cooling air.
Check the heatsink for dust.
Check the ambient tempera-
ture.
Make sure that the switching
frequency is not too high in
relation to ambient tempera-
ture and motor load.
Check motor and load.
Decrease motor load.
If no motor overload exists,
check the temperature model
parameters.
Check load.
Check loading.
Check motor size.
Make identification run.
Check keypad connection and
possible keypad cable