Specifications

92
• DOK-DIAX01-MAIN+2AD+1M-ANW1-EN-E1,44 • 07.97
3. Controller Functions
Not-Aus
Legend:
1 = +24V
0 = 0V
= signal step
= any control
state
^
^
^
^
27
23
24
25
26
28
29
30
31
32
33
34
35
36
37
1
POS 2
E-STOP (RAC only)
RF
RUN
POS 1
MD-RED
OSCILATE
PAR 1
PAR 2
LIMIT 1
LIMIT 2
LIMIT 4
SPEED 1
SPEED 2
EXT POS
1
0
0 = E-stop
switch off
^
X2 control inputs
Control unit
3
4 OFF
X15
NC
controller
control unit
Note:
The message E-STOP appears in the display when the E-stop control
input is at 0!
Figure 93: Control inputs for E-stop circuit
Command value input via
the NC controller
3.18 EMERGENCY-STOP circuit (RAC)
The EMERGENCY-STOP circuit is built into the RAC control unit. It
requires no additional circuitry for the power-down logic.
In addition, energy released during braking is fed back into the mains.
For the E-stop circuit, there are two distinct methods for stopping the
drive and switching off the power.
The speed command value is set to zero internally after the E-stop
control inputs goes from 1 to 0. This can be effected immediately or via
the speed command value ramps (selected via function parameters).
Power-down occurs when the motor shaft is stationary but no later than
five seconds after the internal N command value is set to 0. If the
command value is set to zero immediately, the drive brakes at maximum
torque, just like when the drive follows steeply-set ramps.
The motor coasts if the power is disconnected before the motor stops.
The OFF contact must be opened after the controller has stopped the
drive. This disconnects the power.
The E-stop system must be selected and tested according to
the installation in use.
Internal command value
disconnect