EP Equipment IMOW ICE251, Руководство по эксплуатации

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60
Error Message
Possible cause Fault elimination
Error
Error text
31 VMN HIGH
Cause1:
Before switching the LC on, the
software checks the power bridge: it
turns on alternatively the low-side
power MOSFETs and expects the
phase voltages decrease down to
-BATT. If the phase voltages are
higher than 10% of the nominal - If the problem occurs at start-up
(the LC does not close), check:
o motor internal connections
(ohmic continuity);
o motor power cables connections;
o if the motor connections are OK,
the problem is inside the controller.
Replace it.
30 VMN LOW
Cause1:
Start-up test. Before switching the
LC on, the software checks the
power bridge:
it turns on alternatively the high-side
power MOSFETs and expects the
phase voltages increase toward the
positive rail value. If one phase
voltage is below 66% of the rail
voltage, this alarm occurs.
Cause2: - If the problem occurs at start up
(the LC does not close at all),
check:
o motor internal connections
(ohmic continuity);
o motor power-cables
connections;
o if the motor connections are OK,
the problem is inside the
controller;
replace it.
227
HW FAULT
11/12/13
At each start-up the supervisor
micro-controller checks that the
hardware circuit intended to enable
and disable the LC driver (A16)
works properly.
This type of fault is not related to
external components. Replace the
logic board.
227
HW FAULT
01/02/03
At each start-up the supervisor
micro-controller checks that the
hardware circuit for enabling and
disabling of the power bridge works
properly.
This type of fault is not related to
external components. Replace the
logic board.