Lenze ECS series User Manual

Troubleshooting and fault elimination
Malfunction of the drive
12
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241
EDBCSXA064 EN 3.2
12.2 Malfunction of the drive
Maloperation/fault Cause Remedy
Feedback system
l Motor rotates CCW when viewed
to the motor shaft.
l C0060 counts down after
controller enable.
Feedback system is not connected in
correct phase relation.
Connect feedback system in correct
phase relation.
The rotor position indicated under
C0060 is derived from the position
encoder (MCTRL_dnPos_p).
Therefore observe the mounting
position when using separate
feedback systems for position
(C0490) and speed (C0495).
Asynchronous motor
l Motor rotates with I
max
and half
slip frequency.
l Motor does not react to setpoint
change.
Motor is not connected in correct
phase relation.
Connect motor in correct phase
relation at the terminals U, V, W.
Synchronous motor
l Motor does not follow the
setpoint change.
l I
max
follows the setpoint
selection in idle state.
Motor is not connected in correct
phase relation.
Connect motor in correct phase
relation at the terminals U, V, W.
l Motor rotates CCW when viewed
to the motor shaft.
l Synchronous motor accelerates
with a speed setpoint = 0 to
rated speed.
l Torque of synchronous motor is
too low.
Rotor angle (offset of electrical and
mechanical rotor angle) is not
correct.
Carry out rotor position adjustment
(C0095 = 1) or set rotor
displacement angle manually.
Operate motor without load for this
purpose!
l Motor blocks in certain positions. The number of pole pairs of the
resolver or motor is not set
correctly.
Number of pole pairs (C0080) must
be set correctly.

Lenze ECS series Specifications

General

Brand	Lenze
Model	ECS series
Category	Control Unit
Language	English