Nidec LEROY-SOMER, Руководство по установке

Страница: 36 / 40

36
TRIPS - DIAGNOSTICS
Installation guide Powerdrive MD Smart Equipment
5704 en - 2021.10 / b
No. Parameter-setting
interface name
Reason for trip Solution
3 Over current
Over current
• Check the motor insulation.
• Check the motor cables (connections and insulation).
• Check the quality of the mains supply.
• Run power diagnostics.
This trip cannot be reset for a period of 10 seconds.
4 Brak. IGBT
Braking IGBT transistor overcurrent
• Check the braking resistor wiring and insulation level.
• Make sure that the resistor ohmic value is compatible with
the MD-TF option used.
This trip cannot be reset for a period of 10 seconds.
5 I Imbalanced
Motor current imbalance:
vector sum of the 3 motor currents is not
zero
• Check the motor insulation.
• Check the cable insulation.
6
Out Ph. loss of
a motor phase
Loss of a motor phase
Check the motor cable and resistance values between motor
phases.
7 Overspeed
The speed is greater than (1.3 x 01.06 )
or than ( 01.06 + 1000 min
-1
)
• Check the drive settings.
• When the flying restart function is not being used, check
that 06.09 is at "Disabled".
8 Drive overload Ixt
The drive overload level exceeds the
conditions defined in section 1.4.2 of the
installation manual
• Check the drive is suitable for the motor current cycle.
• Check the ambient temperature.
9 IGBT U
Internal protection of phase U IGBTs
• Check the motor and cable insulation.
• Run power diagnostics.
10 Th rectifier
Rectifier heatsink temperature too high
• Clean the cabinet dust filters.
• Check the drive external and internal fans are working
correctly.
• Check that the product air inlet temperature is not outside
the limits.
11 Encoder rot
The measured position does not vary
(only if a feedback speed option is
present)
• Check the encoder wiring.
• Check that the motor shaft turns.
13 UVW invert
The encoder U, V, W signals are
reversed (only if a feedback speed option
is present)
Check the conformity of the encoder wiring.
14 Tune U Encod
During the autotune phase, one of
the encoder U, V or W commutation
channels is not present
• Check the encoder wiring.
• Check the encoder connections.
• Change the encoder.
15 Tune V Encod
16 Tune W Encod
18 Autotune
A stop command has been given during
the autotune phase.
Repeat the autotune procedure (see
05.12
)
19 Brak. resist.
Parameter
10.39
"Braking energy
overload accumulator" has reached
100%
• Check the settings of
10.30
and
10.31.
• Check the resistor is compatible with the application
requirements.
21
IGBT U
overheating
Overheating of phase U 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 are complied with.
• Check that the switching frequency 05.18 is compatible
with the motor current level.