FC 300 Design Guide
How to Program
is declining smoothly. A large percentage
minimizes torque jerks.
" 3-8* Other Ramps
3-80 JogRampTime
Range:
0.01 - 3600.00 s
*
s
Function:
The jog ramp time is the acceleration/deceleration
time from 0 RPM to the rated motor frequency
n
M,N
par. 1-25. The output current cannot be
higher than the torque limit (set in p ar. 4-16).
The jog ramp time starts when a jog command is
activateed via the control panel, a p rogrammed
digital input, or the serial communication port.
3-81 Quick Stop Ramp Time
Range:
0.01 - 3600.00 s
*
s
Function:
The ramp-down time is the dec eleration time from
the rated motor speed to 0 RPM. No overvoltage can
arise in the inverter due to generating operation of
the motor. Nor can the generated current be higher
than the torque limit (set in par. 4-17). Quick-stop
is activated by means of a signal on a programmed
digital input, or v ia the serial c ommunication port.
" 3-9* Digital Pot.Meter
This function allows the user to increase or decrease
the resulting reference by activating digital inputs
setup as either INCREASE, DECREASE or C LEA R.
Minimum one input must be set up as INCREASE
respectively DECREASE to make it active.
3-90 Step Size
Range:
0.01 - 200.00%
*
0.01%
Function:
If INCREASE/DECREASE is activated for less
than 40 0 msec, the resulting reference will
be increased/d ecre ased by the amount set
in par. 3-9 0 Step Size.
3-91 Ramp Time
Range:
0.01 - 3600.00 s
*
1.00s
Function:
If INCREASE / DEC REASE is activated for more than
400 m sec, the resulting re ference will be ramped
up / down according to this ramp time. The ramp
time is defined as the time it will take to cha n ge
the resulting refere nce from 0 % to 100 %.
3-92 Power Restore
Option:
*
Off [0]
On [1]
*
default setting ()display text []value for use in communication via serial communication port
161
MG.33.B
3.22 - VLT is a registered Danfoss trademark
To Next Page
Loading...
General