Danfoss VLT 5000 Series Instruction Manual page 108

Terminals 17/29/33 Terminals 16/29/32
preset ref. msb preset ref. lsb
0 0
0 1
1 0
1 1
See drawings in section Handling of multi-references.
219 Catch up/slow downvalue
(CATCH UP/SLW DWN)
Value:
0.00-100% of the current reference
Function:
This parameter enables the entry of a percentage val-
ue (relative) which will either be added to or deducted
from the actual reference.
Description of choice:
If Catch up has been selected via one of the terminals
16, 29 or 32 (parameters 300, 305 and 306), the per-
centage (relative) value selected in parameter 219 will
be added to the total reference.
If Slow down has been selected via one of the termi-
nals 17, 29 or 33 (parameters 301, 305 and 307), the
percentage (relative) value selected in parameter 219
will be deducted from the total reference.
221 Torque limit for motor mode
(TORQ LIMIT MOTOR)
Value:
0.0 % - xxx.x % of T
M,N
Function:
This function is relevant for all application configura-
tions; speed, process and torque control.
This is where to set the torque limit for motor operation.
The torque limiter is active in the frequency range up
to the rated motor frequency (parameter 104).
In the oversynchronous range, where the frequency is
higher than the rated motor frequency, this function
acts as a current limiter.
See fig. below.
= factory setting, () = display text, [] = value for use in communication via serial communication port
MG.51.C5.22 - VLT is a registered Danfoss trademark.
Preset ref. 1
Preset ref. 2
Preset ref. 3
Preset ref. 4
0.00%
Description of choice:
See also parameter 409 for further details.
In order to protect the motor from reaching pull-out tor-
que, the factory setting is 1.6 x the rated motor torque
(calculated value).
If a synchronous motor is used, the torque limit must
be increased in relation to the factory setting.
If a setting in parameters 101-106 is changed, param-
eters 221/222 are not automatically reversed to the
factory setting.
160 % of T
M,N
222
Value:
0.0 % - xxx.x % of T
®
VLT 5000 Series
Torque limit for generating operation
(TORQ LIMIT GENER)
M,N
The max. torque depends
on the unit and the motor
size selected.
160 %
105