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LEROY-SOMER
4946 - 2013.07 / a
POWERDRIVE MD2CS
45
en
InstallatIon and maIntenance
Chassis-mounted variable speed drive
tRIPs - dIaGnostIcs
No.
Parameter-
setting interface
name
Reason for trip
Solution
51
DO2 MDX-I/O
TIMER over ld
the do2 output load current (mdX-I/o
tImeR option) is >200 ma
check that do2 is not short-circuited.
52
DO3 MDX-I/O
TIMER over ld
the do3 output load current (mdX-I/o
tImeR option) is >200 ma
check that do3 is not short-circuited.
53
MDX-I/O TIMER
link
communication problem between the drive
and the mdX-I/o tImeR option
check the mdX-I/o tImeR option mounting.
54
Internal serial
link
communication problem between the
drives
check the setting of
11.66
.
55 Unstable DC bus
The drive DC bus oscillates significantly
• check the balancing of the mains phases.
• check that all 3 mains phases are present.
56
IGBT V
Internal protection of phase V IGBts
• check the motor and cable insulation.
• Run power diagnostics.
57
IGBT W
Internal protection of phase W IGBts
58
IGBT V
overheating
overheating of phase V IGBts
• Clean the cabinet dust filters.
• check the drive ventilation units are working correctly.
• check that the product air inlet temperature is not outside
the limits.
• If the trip appears at frequencies lower than 10 Hz, check
that the current levels depending on the frequency have been
complied with.
• check that the switching frequency
05.18
is compatible
with the motor current level.
59
IGBT W
overheating
overheating of phase W IGBts
60
Diagnostic
Problem detected during the control and
interface boards test, the power test or
during the self-test
• check that the sto1 and sto2 inputs are closed.
• see diagnostic error table.
63
STO input
inconsistency
the sto1 and sto2 inputs have had a
different state for more than 100 ms
check the remote control link for the sto1 and sto2 inputs.
65
10V over ld
overload on the +10 V power supply
check the I/o wiring
66
DO1 over ld
the do1 output load current
is >200 ma
check that do1 is not short-circuited.
67
Internal
ventilation
the internal ventilation has stopped
working.
(
POWERDRIVE FX
50t and 100t only)
Get in touch with your usual leRoY-someR contact.
68
Motor
overcurrent
the current has exceeded the limit
programmed in
05.55
. the load is too high
for the setting.
check that
05.55
is consistent with the application.
69
24 V MDX-I/O
TIMER over ld
the 24 V load current is too high
check the mdX-I/o tImeR option I/o wiring.
70
4 mA loss on
MDX-IO TIMER
AI4
loss of the current reference on analog
input aI4 of the mdX-I/o tImeR option
check the input wiring and source of the mdX-I/o tImeR
option.
71
4 mA loss on
MDX-IO TIMER AI5
loss of the current reference on analog
input aI5 of the mdX-I/o tImeR option
101
AC mains loss
loss of ac supply
• check the input fuses
• check the quality of the power supply (voltage dips)
102
Rectifier
Loss of rectifier synchronisation with the
mains (
POWERDRIVE FX
only)
check the quality of the power supply (commutation notches
present)