Motor Hunting - Veikong gpd 515/g5 Startup Manual

CHECK STALL
PREVENTION
SETTINGS
( L3-01 OR L3-06 ).
REFER TO PARA. 2.2
AND VERIFY NOISE
PROBLEM, THEN
CORRECT.
TROUBLESHOOTING CHART 6.4

MOTOR HUNTING

CONTROL METHOD?
V/F Flux Vector
or
Open Loop Vector V/F w/ PG
PROPER PHASE SEQUENCE
OF CONNECTIONS FROM
DRIVE TO MOTOR?
PROPER CONNECTIONS
FROM DRIVE TO
PG (ENCODER)?
ALL PARAMETER SETTINGS
RELATED TO ASR PROPER
FOR APPLICATION?
WITH DRIVE IN STOPPED
CONDITION, REDUCE APPLICABLE
ASR PROPORTIONAL GAIN
( C5-01 OR C5-03 ) SETTING.
DOES MOTOR STILL
HUNT?
EXCESSIVE
MECHANICAL SYSTEM
CHATTER?
ERRONEOUS
YES
OPERATION DUE
TO NOISE?
DRIVE
IS FAULTY.
or
NO
YES
NO
YES
NO
YES
NO
YES
YES
NO
NO
6-15
CHECK CONNECTIONS
FOR PROBLEM AND
REPAIR.
CHECK CONNECTIONS
FOR PROBLEM AND
REPAIR.
CHECK SETTINGS;
REPROGRAM
AS REQUIRED.
DETERMINE THE
OPTIMUM SETTING FOR
WHICH THE MOTOR
WILL NOT HUNT.
CHECK FOR
PROBLEM IN MOTOR,
MECHANICAL SYSTEM
OR BRAKE.
REDUCE ASR OUTPUT
LAG TIME ( C5-06 ) BY
SMALL AMOUNTS UNTIL
AMOUNT OF CHATTER
IS ACCEPTABLE.