4 Adjustment
C1, C1f
11
Armature voltage control
Adjustment switch S3
Armature voltage
S3-1
S3-2
S3-3
S3-3
90 ... 180V
ON
ON
ON
ON
60 ... 140V
ON
OFF
ON
OFF
20 ... 60V
OFF
ON
OFF
ON
11 ... 20V
OFF
OFF
OFF
OFF
Exact speed adjustment
Adjustment
Range
Potentiometer n
min
P4
-0.2 ... 2V command value
Potentiometer n
max
P2
50% of the coarse adjustment
higher speed >>> turn potentiometer clockwise
Attention:
First adjust n
min
and then n
max
.
Note for C1:
With armature voltage control the zero connection is connected to
the mains potential!
IxR compensation
- Voltage drop across the internal resistance of the motor
- Compensation by means of a current proportional increase of the speed
Adjustment
Range
Potentiometer IxR P1
0 ... 10%
higher compensation >>> turn potentiometer clockwise
- at 10% speed
- increase load up to 100%
- increase compensation
- load speed >>> idle speed
Torque control
- Speed controller loop circuit with -1 amplification
- Jumper S9 closed; X
P
without function
- All contacts of switch S2 in ‘OFF’ position
- No tacho; no armature voltage feedback
