E.H. Wachs MDSF, User Manual, Page: 15 / 42

Hex Decimal Error Name Error Reaction Description
2311 8977
Effective motor
current monitor Reaction 2: Downramp /
apply brake / de-energize..
Reduce motor load (less current, more standstill phases of the drive,
lower clock time, lower accelerations), check thermal time constant
and nominal or reference current of the motor. Check motor
dimensioning and replace motor by an adequately dimensioned
model if necessary; use cooling option (water, air) if available,
optimize mechanic components.
2312 8978
Effective drive current
monitor Reaction 2: Downramp /
apply brake / de-energize..
Reduce device load (less current, more standstill phases of the
drive, lower clock times, lower accelerations), check device
dimensioning and replace controller by an adequate model if
necessary, reset switching frequency of the power stage to default
values, optimize mechanic components.
2320 8992
Overcurrent power
stage
Reaction 5: Switch-off of the
current immediately (without
ramp), application of the
brake
Check cable and connectors of motor and braking resistor
(insulation, cable clamping screws of the connector fastened
tightly).
Check motor (if insulation class of the motor is sufficient, look out
for defective windings (e.g. due to overheat))
Check braking resistor.
Check controller settings for instabilities:
Current loop: Current controller bandwidth too large (>50%)->
current controller may be instable, saturation characteristic
required, are the el. motor data (resistance, inductance) correct,
right commutation offset (“phasing”) of the position feedback? The
error may also be eliminated by setting the option “activate voltage
decoupling” (O2230.24) in the controller optimization.
Speed control: Stiffness and/or damping set too high, too high
signal delay in the control loop (current bandwidth too small
(<50%), control signal or actual speed value filter (1 and 2) set too
high), control loop parameterized correctly (moment of inertia
approx. correctly configured, for oscillating systems (e.g. toothed
belt axes) a D-component (values >1000%) and/or a speed filter
value >500% (or 600us) are required. 600 us) required).
Speed observer: With active disturbance compensation, increase
observer time constant and/or filter time constant for the
disturbance value or reduce current controller bandwidth (or
stiffness).
Check current (in stable control loops) for ondulations (e g first and
2331 9009 Earth fault phase 1
Reaction 5: Switch-off of the
current immediately (without
ramp), application of the
brake
Reduce device usage (reduce current of the drives, lower
accelerations), check axis combination dimensioning.
2332 9010 Earth fault phase 2
Reaction 1: Downramp actual
speed; remain in position
control state. Check multi axis system for earth leakage (faulty motor cable etc.) -
even if the power stage is not powered.
Turn device off and back on again after repair (24V Off/On).
2333 9011 Earth fault phase 3
Reaction 1: Downramp actual
speed; remain in position
control state.
Check mains connection and fuses
2340 9024
Short-circuit between
phases
Reaction 1: Downramp actual
speed; remain in position
control state.
Check mains connection and fuses, check if the correct supply
voltage was configured (230V for intermediate voltage 290V..360V,
400V for intermediate voltage 500V..620V and 480V for
intermediate voltage 620V..740V)
2380 9088
C3 PSUP: DC link
current exceeds limit
Reaction 1: Downramp actual
speed; remain in position
control state.
Check configuration of all devices in the axis combination. The set
mains voltage must be the same for all devices.