Santerno Sinus Penta - Page 463

PROGRAMMING GUIDE
SINUS PENTA
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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 Configured
A079 Description FOC control, but encoder not correctly configured.
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 incremental encoder enabled for speed measure with parameter C189
(see the ENCODER/FREQUENCY INPUTS MENU).
Otherwise, no position sensor on the expansion board has been configured via
parameters R023a, R023b, R092 to R097 (see E
XPANSION BOARD
CONFIGURATION MENU).
Possible
cause
• C012 = 0 (for motor 1, or equivalent parameters for motors 2 and 3). See the
MOTOR CONFIGURATION MENU.
• The value set in C189 does not enable any encoder for speed measure.
• The FOC control has been improperly enabled.
• Parameters R023a, R023b, R092 to R097 are not correctly set.
Solution
Set parameters correctly.