Standard user guide
V51-00-V19 eng
-12-
Rights to changes reserved
Par. 6: Boost
When a larger start torque is needed is it possible to adjust
this parameter so there would be up to 25% more voltage
out. Beginning from 0 Hz up to the Frequency/Voltage
cross point. Setting this parameter too high might cause
the inverter to get over heated.
Therefore set the value as low as possible.
(Recommended values see table below).
Par. 7: DC-brake voltage / torque
Deceleration is activated with the STOP / HOLD input
terminal 9.
Note:
The display shows Hb while DC braking.
Par. 8: DC braking time
This is the duration for the time where the DC braking is active. The motor might need ventilation if the
DC braking is used often or have a long brake down time.
Par. 9: Start frequency
This parameter is used for compensating for the motor slip.
The output frequency will start at the value set in this parameter
Recommended values for Par. 6/7/A
Type:
Par. 6
Par. 7
Par. A
SC
750/5 15 25 15
SC
1500/5 10 22 10
SC3-1100/5
10 10 10
SC3-2200/5 8 20 10
SC3-4000/5 7 17 10
SC3-5500/5
6 15 8
SC3-7500/5
5 13 5
SC3-11000/5
4 12 5
SC3-22000/5
3 5 0
20
40
60
80
100
%
10
20
30
40
50 Hz
V/F top point
[s]
50
[Hz]
Deceleration after
Parameter P 4
DC – braking
Brake torque P7
P8
0-120s
P
A