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20
Actions
Start drive and monitor panel and RSYC status LED. The following indicates
successful Trim control loop:
- Drive accelerates to speed reference which was defined above.
- Output frequency starts oscillating around 50 Hz.
- AI1 is 2.5 V ... 7 V.
- RSYC LED blinks the first time after 5 ... 20 seconds.
- LED starts blinking in shorter time intervals and finally LED illuminates steady
for several seconds.
Increase 40.17 TRIM RANGE ADJUST slightly (e.g. 1 ... 5%) if faster
synchronization is required.
Stop drive.
Final check
Action
Connect the contactor control circuit cable (J2/SYNC) to RSYC unit.
Test the system and verify the operation.
The system will synchronize in less than 15 seconds and will remain in the
synchronization status for tens of seconds when it is properly installed and
commissioned.
Disabling the synchronization
To disable synchronization function:
Change the external control location in the drive application program from EXT2
•
to EXT1 (parameter 11.02) or switch the drive to local control mode by the
LOC/REM key of the control panel.
Turn operating switch S1 in the contactor control circuit to the OFF position.
•
Resetting the system
The relay logic can be reset to initiate another synchronizing cycle by turning the
operating switch S1 of the contactor control circuit to the OFF position and then to
ON again (1-0-1).
Start-up
Information
-
Excessive value may lead to
unstable control.
Additional information
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