Danfoss VLT FC 100 Series Programming Manual page 62

Parameter Description
3.5.5 3-8* Other Ramps
3-80 Jog Ramp Time
Range: Function:
Size [1.00 - Enter the jog ramp time, i.e. the
related 3600.00 acceleration/deceleration time between 0
*
s] RPM and the rated motor speed (n
in 1-25 Motor Nominal Speed). Ensure that
the resultant output current required for
the given jog ramp time does not exceed
the current limit in 4-18 Current Limit. The
jog ramp time starts upon activation of a
jog signal via the control panel, a selected
digital input, or the serial communication
port.
par . 3 − 80 =
tjog × nnorm par . 1 − 25
jog speed par . 3 − 19
RPM
P 4-13 RPM
high limit
P 1-25
Motor speed
P 3-19
Jog speed
P 4-11 RPM
low limit
t jog
P 3-80
Ramp up
(acc)
Figure 3.16
3-81 Quick Stop Ramp Time
Range:
Size related [0.01 - 3600.00 s]
*
®
VLT HVAC Drive Programming Guide
) (set
M,N
s
Par . 3 − 81 =
t jog Time
3.5.6 3-9* Digital Pot.Meter
P 3-80
Ramp down
(dec)
The digital potentiometer function allows the user to
increase or decrease the actual reference by adjusting the
set-up of the digital inputs using the functions INCREASE,
DECREASE or CLEAR. To activate the function, at least one
digital input must be set up to INCREASE or DECREASE.
Function:
MG11CD22 - VLT ® is a registered Danfoss trademark
RPM
P 4-13 RPM
high limit
Reference
P 1-25
Motor speed
P 4-11 RPM
low limit
Figure 3.17
t Qstop s x n s RPM
jog ref ( par . 3 − 19 ) RPM
Δ
3-82 Starting Ramp-up Time
Range: Function:
Size [0.01 - The ramp-up time is the
related 3600.00 s] acceleration time from 0 rpm to the
*
nominal motor speed set in
3-82 Starting Ramp-up Time when
Compressor Torque is active in
1-03 Torque Characteristics.
3-90 Step Size
Range:
0.10 % [0.01 - 200.00 %]
*
3
Time
P 3-81
Qramp
Qstop
Function:
3-35
3