Danfoss ADAP-KOOL Drive - Page 62

3-52 Ramp 2 Ramp Down Time
Range: Function:
20.00 s* [1.00 - 3600.00 s] Enter the ramp-down time, i.e. the deceleration time from par.1-25 Motor Nominal Speed to 0 RPM.
Choose a ramp-down time such that no over-voltage arises in the inverter due to regenerative
operation of the motor, and such that the generated current does not exceed the current limit set
in par.4-18
Current Limit . See ramp-up time in par.3-51 Ramp 2 Ramp Up Time .
par .3 − 52 =
tdec × nnorm par . 1 − 25
ref rpm
s
3.5.5 3-8* Other Ramps
Configure parameters for special ramps e.g. Jog.
3-80 Jog Ramp Time
Range: Function:
20.00 s* [1.00 - 3600.00 s] Enter the jog ramp time, i.e. the acceleration/deceleration time between 0 RPM and the rated motor
speed (n
M,N
) (set in par.1-25 Motor Nominal Speed ). Ensure that the resultant output current re-
quired for the given jog ramp time does not exceed the current limit in par.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
s
3-82 Starting Ramp Up Time
Range: Function:
20.00 s* [0.01 - 3600.00 s] The ramp-up time is the acceleration time from 0 rpm to the nominal motor speed set in par. 1-25.
when High Starting Torque is active.
3.5.6 3-9* Digital Pot.Meter
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.
3-90 Step Size
Range: Function:
0.10 %* [0.01 - 200.00 %] Enter the increment size required for INCREASE/DECREASE, as a percentage of the synchronous
motor speed, n
s
. If INCREASE/ DECREASE is activated the resulting reference will be increased /
decreased by the amount set in this parameter.
3 Parameter Description ADAP-KOOL
®
Drive Programming Guide
62 MG.11.N1.02 - VLT
®
is a registered Danfoss trademark
3