GE AF-300, C11 manual When motor rotates but the speed does not change

The motor does not rotate if the following commands are given.

1)An operation command is given while coast-to-stop command is output to the control terminals.

2)Both operation command FWD and REV are input.

(2)When motor rotates but the speed does not change.

Yes

Change the setting. Yes

Motor rotates but speed does not change.

Maximum frequency
					Does		speed change		when
setting too low?
					freq.		setting POT(VR)				Yes
	No				turned clockwise or counter
Upper/lower frequency					clockwise?						No
limiter activating?
	No					Does the speed
										Yes
						change when UP or
Which frequency setting
		Built-in POT (VR)				DOWN key de-
method is in use: built -in
						pressed?				No
POT (VR), keypad panel,		Keypad panel operation
analog signal, or								No
multistep frequency?		Analog signal				Can the frequency				Yes
						setting signal (0 to
						+10Vdc, 4 to
	Multistep frequency					20mAdc) be
						changed?
External wiring con-								No
nections between control
			Remedy wiring error.			External wiring con-
terminals X1,X2,X3 -		No		No
						nections between
CM connected correctly?
						control terminals
						13,12,C1 - 11 cor-
						rect?
	Yes
Frequencies for each
			Change the setting
multistep selecting fre-		No
			frequency.					Yes
quency different?

Yes

Setting of accelera - tion/deceleration time excessively long?

Yes

Change setting to correct acceleration/deceleration time for load.

Probable faulty drive or error be-

No cause of noise, etc. Contact GE Fuji.

Replace faulty fre- quency setting POT(VR) or signal converter as ap- propriate.

In the following cases, change of motor speed is also restricted.

1)Bias frequency (F18) setting value is large.

2)Signals are input from both control terminals 12 and C1 and there is no significant change in the added value. (When F01 is 3)

3)Load is excessive and stall prevention function is activated.

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