GE Industrial Solutions AF-650 GP General Purpose Drive Programming Guide - Manual (Page 55)

C-21 Jog Speed [RPM]
Range: Function:
150
RPM *
[0 - par.
4-13 RPM]
Enter a value for the jog speed n
JOG
,
which is a fixed output speed. The
frequency converter runs at this speed
when the jog function is activated. The
maximum limit is defined in F-17 Motor
Speed High Limit [RPM].
See also C-22 Jog Accel/Decel Time.
C-22 Jog Accel/Decel Time
Range: Function:
3.00 s * [0.01 -
3600 s]
Enter the jog ramp time, i.e. the acceleration/
deceleration time between 0 RPM and the
rated motor frequency n s . Ensure that the
resultant output current required for the given
jog ramp time does not exceed the current
limit in F-43 Current Limit. The jog ramp time
starts upon activation of a jog signal via the
keypad, a selected digital input, or the serial
communication port. When jog state is
disabled then the normal ramping times are
valid.
Illustration 3.19 Jog Ramp Time
Par . C − 22 =
tjog s x ns RPM
Δ log speed ( par . C − 21) RPM
C-23 Quick Stop Decel Time
Range: Function:
3.00 s * [0.01 -
3600 s]
Enter the quick–stop decel time from the
synchronous motor speed to 0 RPM. Ensure
that no resultant over-voltage will arise in the
inverter due to regenerative operation of the
motor required to achieve the given decel
time. Ensure also that the generated current
required to achieve the given decel time does
not exceed the current limit (set in
F-43 Current Limit). Quick-stop is activated by
means of a signal on a selected digital input,
or via the serial communication port.
C-24 Quick Stop Ramp Type
Select the ramp type, depending on requirements for
acceleration and deceleration. A linear ramp will give constant
acceleration during ramping. An S-ramp will give non-linear
acceleration, compensating for jerk in the application.
Option: Function:
[0] * Linear
[1] S-ramp Const Jerk
[2] S-ramp Const Time
C-25 Quick Stop S-ramp Ratio at Decel. Start
Enter the proportion of the total ramp-down time (C-23 Quick
Stop Decel Time) where the deceleration torque increases. The
larger the percentage value, the greater the jerk compensation
achieved, and thus the lower the torque jerks in the application.
Range: Function:
50 % * [1 - 99 %]
C-26 Quick Stop S-ramp Ratio at Decel. End
Enter the proportion of the total ramp-down time (C-23 Quick
Stop Decel Time) where the deceleration torque decreases. The
larger the percentage value, the greater the jerk compensation
achieved, and thus the lower the torque jerks in the application.
Range: Function:
50 % * [1 - 99 %]
Parameters to configure Frequency Settings 2 and 3.
C-30 Frequency Command 2
Option: Function:
Select the reference input to be
used for the second reference
signal. F-01 Frequency Setting 1,
C-30 Frequency Command 2 and
C-34 Frequency Command 3 define
up to three different reference
signals. The sum of these reference
signals defines the actual reference.
[0] No function
[1] Analog Input 53
[2] Analog Input 54
[7] Frequency input 29
[8] Frequency input 33
[11] Local bus reference
[20] * Digital Potentiometer
[21] Analog input X30-11
[22] Analog input X30-12
C-34 Frequency Command 3
Option: Function:
Select the reference input to be
used for the third reference signal.
F-01 Frequency Setting 1,
C-30 Frequency Command 2 and
C-34 Frequency Command 3 define
Parameter Descriptions AF-650 GP Programming Guide
54 DET-618C
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