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19
Installation
3
Connection examples
3.4
Motor with SC speed controller
3.4.4
Two examples are given and are intended to clearly explain the operating modes of the servomotor
with SC Speed controller. The figures given refer to a motor with a nominal voltage of 12 V.
Electronic speed control
FG
DIR
U
nsoll
GND
U
mot
U
p
12 V
DC
+ 3 V DC
ca. 300 Hz
+
–
The motor rotated anti-clockwise with approx. 3000 rpm, the speed is controlled electronically.
External speed control
FG
DIR
U
nsoll
GND
U
mot
U
p
12 V
DC
0 V DC – 2 x U
N
(max. 28 V DC)
+ 10 V DC
ca. 190 Hz
+
–
The motor rotates e.g. with 1900 rpm in a clockwise direction, the speed is controlled by the motor
voltage (U
mot
). Approx. 190 Hz is measured at the frequency output (FG).
190 pulses/sec = 31.66 rev/sec,
31.66 rev/sec = 1900 rpm.