SINUS PENTA
PROGRAMMING GUIDE
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A080 Speed Tracking
A080 Description Speed measurement error.
Event
The system detected an error between the measured speed and the speed setpoint.
Speed has been exceeding the value set in parameter C193 for a time longer than the
value set in parameter C192.
In case of speed feedback from encoder (
encoder properly configured, FOC active
and C012, C055, C098
= Yes), speed is measured from the encoder. In case of VTC
control, speed is estimated based on a model of the asynchronous motor.
This protection is enabled only if parameter C194 is not set at zero.
Possible
cause
• Wrong setting in parameters C192, C193, C194 (see the ENCODER/FREQUENCY
INPUTS MENU).
• Torque limit too low.
• Connected load too heavy.
• Encoder failure, encoder mechanical joint broken down, disconnection of one of the
signal cables of the encoder.
Solution
1. Set parameters C192, C193 correctly.
2. Check torque limit value (see the INPUTS FOR REFERENCES MENU and the
CONTROL METHOD MENU).
3. Check the mechanical load.
4. Make sure that the encoder works properly, check its mechanical connection to the
motor and check that the encoder signal cables are properly connected to the
A081 Keypad Watchdog
A081 Description
Watchdog for the communication to the keypad.
Event
Communication failed when the keypad was enabled as a reference source or a
command source or when it was in Local mode (
Watchdog time is equal to approx. 1.6
seconds)
Possible
cause
• Keypad cable disconnected.
• Failure of one of the two connectors of the keypad.
• Strong electromagnetic disturbance or radiated interference.
• Keypad failure.
• Incorrect setting in parameters relating to serial link 1 (see the SERIAL LINKS
Solution
1. Check the connection of the keypad cable.
2. Make sure that the keypad cable connectors are intact (on both drive side and
keypad side).
3. Check communication parameters of serial link 1.
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