GE AF-300 P11 User Manual page 107

(2) If the motor rotates but the speed does not change
The motor rotates but the
speed does not change.
Change the setting.
YES
operation
Is the timer timing
too long?
NO
YES
Is the pattern operation
competed?
NO
Are all acceleration and
YES
deceleration times
identical?
NO
Faulty drive or error
due to noise, etc.
Contact GE Drive.
In the following cases, changing the motor speed is also restricted.
Signals are input from control terminals both 12 and C1 when "F01 Frequency command 1" and "C30
Frequency command 2" are set to 3, and there is no significant change in the added value.
The load is excessive, and the torque limiting and current limiting functions are activated.
Is the maximum
frequency setting too
low?
NO
Is the higher or lower
YES
frequency limiter
activating?
NO
Pattern
Which frequency setting
methods used: keypad panel,
analog signal, multi-step
frequency, or UP/DOWN
control? Is the pattern
operation activated?
Multi-step frequency
UP/DOWN
Are the external connections
between X1-X9 and CM
correct?
YES
Are the frequencies for
each multi-step
frequency different?
YES
Is the acceleration or
NO
deceleration time set
too long?
YES
Change the time setting to
conform to load values.
YES
Increase the setting.
Keypad panel
operation
Does the speed change when
the UP or DOWN is pressed?
Analog signal
NO
Correct the connection
error.
NO
Change the frequency
setting.
7-6
Data subject to change without notice 7/07. © 2007 GE Drives
Set the frequency.
YES
NO
Can the frequency
YES
setting signal (0 to 10 V,
4 to 20 mA) be changed?
NO
Are the external
NO
connections between
control terminals 13, 12,
11 and C1 correct?
YES
Replace the faulty frequency
setting POT (VR) or signal
converter as required.