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The motor does not rotate if the following commands are given.
1)An operation command is given while
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.
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| Maximum frequency |
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| Does | speed change | when |
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| setting too low? |
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| freq. | setting POT(VR) | Yes | ||||||||
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| No |
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| turned clockwise or counter |
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| Upper/lower frequency |
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| clockwise? |
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| No | |||||
| limiter activating? |
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| No |
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| Does the speed |
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| Yes | ||||||||
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| change when UP or |
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| Which frequency setting |
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| DOWN key de- |
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| method is in use: built |
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| pressed? |
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| No | ||||||
| POT (VR), keypad panel, | Keypad panel operation |
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| analog signal, or |
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| No |
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| multistep frequency? | Analog signal |
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| Can the frequency |
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| Yes | ||||||||
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| setting signal (0 to |
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| +10Vdc, 4 to |
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| Multistep frequency |
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| 20mAdc) be |
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| changed? |
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| External wiring con- |
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| No |
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| nections between control |
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| Remedy wiring error. |
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| External wiring con- |
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| terminals X1,X2,X3 - | No |
| No |
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| nections between |
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| CM connected correctly? |
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| control terminals |
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| 13,12,C1 - 11 cor- |
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| rect? |
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| Yes |
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| Frequencies for each |
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| Change the setting |
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| multistep selecting fre- | No |
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| frequency. |
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| Yes |
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| quency different? |
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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.