Lenze 490 Series Speed controllers tor DC motors - Manual (Page 16)

page: 13
quick stop, see chapter 8
output armature current signal
The output terminal ~ supplies a signal proportional to
the armature current. (U
31)
=
5V corresponds approxi—
mately to the nominal current of the controller and can
be used for the direot current display with a measuring
instrument.
The maximum bad
of terminal ~ is bOmA.
3
GND
Speed controller input
Terminal ~ leads to the summation point of the speed
controller via Ri 50 k[2. The permissible input voltage
range is between +10V and -10V. When switching the
controller inhibit the input is switched to zero. In
this oase Ri ~ 25 k[2. For positive set value or positive
master voltage and negative actual value a positive
armature voltage is applied at terminal A.
GND, controller reference point
input, current control, Ri ~ 10 kfi
output speed controller, Ri ~ 200 fl. The terminals ~
and are connected internally via the resistor R 705
on soldering posts. For current ratio control or
connection of an external current potentiometer this
resistor must be removed.
The desired maximum armature
current is set using the internal trimmer 1 with
fully open external current potentiometer.
39
1.
durrerit set value 10 k/1 W Im
Remove R705
5]
El
5]
5]
5]
Lanze