Diagnostics
H-Max HVAC Drives MN04008004E—September 2011 www.eaton.com 21
Fault Codes and Descriptions, continued
Fault
Code
Fault
ID Fault Name Possible Cause Remedy
12 110 Brake chopper supervision
(hardware fault)
• No brake resistor installed
• Brake resistor is broken
• Brake chopper failure
Check brake resistor and cabling. If these are
OK, the chopper is faulty. Contact the
distributor near you
111 Brake chopper
saturation alarm
13 120 AC drive undertemperature
(fault)
Too low temperature measured in power
unit’s heatsink or board. Heat- sink
temperature is under –10°C
—
121 AC drive overtemperature
(alarm)
14 130 AC drive overtemperature
(fault, heatsink)
Too high temperature measured in power
unit’s heatsink or board. Heat- sink
temperature is over 100°C
• Check the correct amount and flow of
cooling air
• Check the heatsink for dust
• Check the ambient temperature
• Make sure that the switching
frequency is not too high in relation to
ambient temperature and motor load
131 AC drive overtemperature
(alarm, heatsink)
132 AC drive overtemperature
(fault, board)
133 AC drive overtemperature
(alarm, board)
15 140 Motor stalled Motor is stalled Check motor and load
16 150 Motor overtemperature Motor is overloaded Decrease motor load. If no motor overload
exists, check the temperature model
parameters
17 160 Motor underload Motor is underloaded Check load
19 180 Power overload
(short-time supervision)
Drive power is too high Decrease load
181 Power overload
(long-time supervision)
25 — Motor control fault Start angle identification has failed.
Generic motor control fault
—
32 312 Fan cooling Fan lifetime is up Change fan and reset fan lifetime counter
33 — Fire mode enabled Fire mode of the drive is enabled. The
drive’s protections are not in use
—
37 360 Device changed
(same type)
Option board changed for one previously
inserted in the same slot. The board’s
parameter settings are saved
Device is ready for use. Old parameter settings
will be used
38 370 Device changed
(same type)
Option board added. The option board was
previously inserted in the same slot. The
board’s parameter settings are saved
Device is ready for use. Old parameter settings
will be used
39 380 Device removed Optional board removed from slot Device no longer available
40 390 Device unknown Unknown device connected (power
unit/option board)
Device no longer available
41 400 IGBT temperature IGBT temperature (unit temperature + I
2
T)
is too high
• Check loading
• Check motor size
• Make identification run
43 420 Encoder fault Encoder 1 channel A is missing • Check encoder connections
• Check encoder and encoder cable
• Check encoder board
• Check encoder frequency in open loop
421 Encoder 1 channel B is missing
422 Both encoder 1 channels are missing
423 Encoder reversed
424 Encoder board missing
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