Nidec LEROY-SOMER Powerdrive FX, Руководство по вводу в эксплуатацию

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169
TRIPS - DIAGNOSTICS
Commissioning manual Powerdrive MD2/FX
4617 en - 2017.09 / e
7 - TRIPS - DIAGNOSTICS
7.1 - Warning
• The user must not attempt to repair the drive
himself, nor perform diagnostics other than those
listed in this section. If the drive malfunctions, it
should be returned to LEROY-SOMER via your usual
contact.
7.2 - Alarms
Alarms may appear during drive operation.
These alarms are for information only, in order to warn the
user: the drive continues to operate but may switch to fault
mode if no corrective action is taken.
On the drive control board, 2 LEDs display alternately «A.L.»
and a number that can be used to identify the alarm by means
of the table below (this number corresponds to the value of
parameter 10.97 ).
Code No. Meaning
A.L.
1
to
4
User alarm 1 ( 10.54 )
to
User alarm 4 ( 10.54 )
6 Motor overload ( 10.17 )
7 Drive overtemperature ( 10.18 )
8 Microcontroller overoccupancy
9 Rectifier
10 Emergency operation (see menu 20)
11
Autocal: measured inductance
12
Autocal: measured EMF
13
Autocal: no offset on this encoder
7.3 - Tripping on a fault
If the drive trips, the drive output bridge is inactive, and the
drive no longer controls the motor.
When a trip is active, the LEDs present on the control board display
alternately «t.r.» and a number that can be used to identify the
active trip (see left-hand column in the table below). For trips
numbered higher than 100, only the last 2 digits are displayed with
a point displayed on both LEDs to indicate the hundred.
Example:
/ : indicates trip no. 1
/ : indicates trip no. 101
After consulting the table, follow the procedure below:
- Make sure that the drive is disabled (STO-1 and STO-2
terminals open)
- Isolate the drive power supply
- Carry out the necessary checks in order to eliminate
the reason for the trip
- Activate the STO-1 and STO-2 inputs to cancel the trip
The HMI displays an active trip page, where «TRIP» flashes at
the top of the screen.
All the trips indicated on the keypad or parameter-setting
interface are listed in the table below.
•
Opening and then closing the STO-1/STO-2 drive
enable terminals may cancel the trip. If the Run FWD
or Run reverse terminal is closed at the time of
resetting, the motor may or may not start immediately,
depending on the setting of
Ctr.06
(
06.04
).
No.
Parameter-
setting
interface name
Reason for trip Solution
1 DC UnderVolt DC bus undervoltage
• Check the input fuses/ DC Bus Fuses
• Check the quality of the power supply (voltage dips)
2 DC over volt DC bus overvoltage
• Check that the mains voltage is within the permitted
tolerance
• Check the quality of the power supply (commutation
notches or transient overvoltages)
• Check the motor insulation
POWERDRIVE MD2 only:
• Check that the deceleration mode ( 02.04 ) is compatible
with the application
• If an MD TF option is used, check its size, its wiring and the
state of the thermal relay
3 Over current Overcurrent at drive output
• Check the motor insulation
• Check the motor cables (connections and insulation)
• Check the quality of the mains supply
POWERDRIVE MD2 only:
• Run power diagnostics
This trip cannot be reset for a period of 10 seconds.
4 Brak. IGBT
Braking IGBT transistor overcurrent
(
POWERDRIVE MD2
only)
• Check the braking resistor wiring and insulation level.
• Make sure that the resistor ohmic value is compatible with
the MD TF option used.