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PARAMETER SETTING MANUAL
VARMECA 20
Variable speed motors and geared motors
FAULTS - DIAGNOSTICS
LEROY-SOMER
3532 - 05.2004 / f
en
5 - FAULTS - DIAGNOSTICS
Faults are indicated on the CDC-VMA console or on the PC/PEGASE VMA 20 software.
With the PEGASE VMA 20 software, faults are indicated in plain text in the fault window.
The table below can be used to analyse faults and specifies any checks which should be performed.
Indication
Indication
Checks to make, possible causes
of the fault on
of the fault on
CDC-VMA 20
PEGASE VMA 20
OK
NO FAULT
I2T MOTOR
MOTOR
OVERHEATING
I2t overheating fault
- Check whether the motor is overloaded (green LED + red LED flashing).
- Check the set rating and the motor power.
- Make sure that the boost setting (P11) has not been modified.
LEVEL In
THRESHOLD In
- Current threshold reached for torque limiting.
OVER CURRENT
OVERCURRENT
- Check that there is no short-circuit on a motor winding or on the connections.
- Check the voltage balance between the supply phases and earth: check that there
is no earth fault.
- Check the motor insulation.
- Check the earth connection and the voltage balancing between earth and
the supply phases.
- Check that the deceleration ramp is long enough for applications with high inertia.
- Check the set rating and the motor power.
- Check that the deceleration ramp is long enough for applications with high inertia.
- Internal fault in the product.
LOCKED ROTOR
LOCKED ROTOR
- Check whether the motor is overloaded or has stalled (green LED flashing).
UNDER VOLT.
BUS UNDERVOLTAGE - Check the mains supply voltage.
EEPROM
EEPROM
- Make sure that the VARMECA 20 is not disturbed by interference.
- Internal fault in the product.
RS 232
SERIAL LINK
- Communication fault between the EEPROM and the micro-controller - product
FAULT
FAULT POSITION K2
- Ensure that MINI DIP K2 is the ON position (0-10V)
POSITION K2
UNDER P1
UNDER P1
- The pressure is less than pressure P1 (set by P51), check the pressure,
or
- the sensor feedback is inactive, check that the cable has not been cut,
or
- the sensor is incorrectly wired up,
or
- the wrong type of feedback (0/10V or 4/20mA) has been selected.
LIMIT TH
OVERLOAD
- Motor overloaded, ensure that the rated power has not been exceeded.
LIMIT I
CURRENT
LIMITING
- Drive in current limiting mode, ensure that the current required for the
load is within the drive limits (measured using the motor current clamp
as described in the setup manual).
ENABLE
LOCKING
- The drive is disabled, make sure there is a jumper between terminals
1 and 3 to unlock it.
FAULTS CAN ONLY BE CLEARED BY SWITCHING OFF THE VARMECA 20
CONSOLE LINK
FAULT
FAULT SPECIFIC TO USE OF THE CDC-VMA 20 CONSOLE
- Check the connection cable.
COMMUNICATION
PROBLEM WITH THE
VARMECA 20
FAULT SPECIFIC TO USE OF THE PEGASE VMA 20 SOFTWARE
- Check the connection cable.
- Check that the VARMECA 20 is correctly supplied.
- Check that the serial port is correctly configured.
