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SINUS PENTA
PROGRAMMING
INSTRUCTIONS
430/452
A075 Motor Overheated
A075
Description
Motor thermal protection tripped.
Event
The software motor thermal protection tripped. Output current has been exceeding the
motor rated current for long periods.
Possible
cause
Poor mechanical conditions of the connected load.
Wrong setting of parameters in the Thermal Protection Menu.
Solution
1. Check mechanical conditions of the connected load.
2. Check parameters
C265
,
C266
,
C267
(and equivalent parameters for motors 2 and
3) in the MOTOR THERMAL PROTECTION MENU
.
A076 Limit Speed
A076
Description
The motor speed is too high.
Event
The motor speed is higher than the current value set in parameter
C031
(for motor 1,
or equivalent parameters for motors 2 and 3).
If
C031
= 0, the limit speed protection is disabled.
If the encoder is disabled, the variable used for this software protection is:
The current speed setpoint for IFD.
The estimated motor speed for VTC control.
Possible
cause
Value of parameter
C031
too low.
Torque reference too high for
SLAVE
mode.
Solution
1. Check the compatibility of the parameter with respect to the maximum speed
parameter.
2. In
SLAVE
mode, check the torque reference value.
A079 Encoder Not Enabled
A079
Description
FOC control, but encoder not enabled.
Event
The FOC control is active, but no encoder has been enabled with parameter
C012
(for
motor
1,
or
equivalent
parameters
for
motors
2
and
3).
Otherwise, no encoder enabled for speed measure with parameter
C189
(see the
ENCODER/FREQUENCY INPUTS MENU).
Possible
cause
C012
= 0 (for motor 1, or equivalent parameters for motors 2 and 3). See the
MOTOR CONTROL MENU.
The value set in
C189
does not enable any encoder for speed measure.
The
FOC
control has been improperly enabled.
Solution
Set parameters correctly.