Other Ramps - Danfoss VLT FC 102 Programming Manual

Programming Guide | VLT® HVAC Drive FC 102

3-8* Other Ramps

6.5.5
3-80 Jog Ramp Time
Default value: Size related
Setup: All setups
Data type: Uint32
Enter the jog ramp time, that is the acceleration/deceleration time between 0 RPM and the rated motor frequency n
resulting output current required for the given jog ramp time does not exceed the current limit in parameter 4-18 Current Limit. The jog
ramp time starts after activation of a jog signal via the LCP, a selected digital input, or the serial communication port. When jog state is
disabled, then the normal ramping times are valid.
3-81 Quick Stop Ramp Time
Default value: Size related
Setup:
2 setups
Data type: Uint32
Enter the quick–stop ramp-down time, that is the deceleration time from the synchronous motor speed to 0 RPM. Ensure that no
resulting overvoltage occurs in the inverter due to regenerative operation of the motor required to achieve the given ramp-down
time. Ensure also that the generated current required to achieve the given ramp-down time does not exceed the current limit (set in
parameter 4-18 Current Limit). Quick stop is activated with a signal on a selected digital input, or via the serial communication port.
RPM
P 4-13 RPM
high limit
Reference
P 1-25
Motor speed
P 4-11 RPM
low limit
Figure 45: Quick Stop Ramp Time
3-82 Starting Ramp Up Time
Default value: Size related
Setup: 2 setups
Data type: Uint32
134 | © 2024.10
Time
P 3-81
Qramp
Qstop
Parameter type:
Conversion index:
Change during operation:
Parameter type:
Conversion index:
Change during operation:
Parameter type:
Conversion index:
Change during operation:
Parameter Descriptions
Range, 1 - 3600 s
-2
True
. Ensure that the
s
Range, 1 - 3600 s
-2
True
Range, 0.01 - 3600 s
-2
True
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