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PACMotion™ PSD Installation and User Manual
GFK-3168A
4.16.9.1
SIL2/PLd Single Channel Control
With the single-channel control of the STO (SIL2/PLd) safety function, STO is switched by one
output of a safety switching device (e.g. safety relay). Erroneous engaging will not be recognized.
Therefore the output of the control must be supervised for possible malfunction.
STO
0 V
0 V
+24 V
+24 V
When STO function is engaged during operation by separating input STO from 24 V, the motor
slows down without control and the drive displays the fault F602.
4.16.9.2
Signal diagram (sequence)
Single channel, IC830DP003 up to IC830DP024
The diagram below shows how to use the single channel STO function for a safe drive stop and fault
free operation of the drive.
1. Decelerate the axis in a controlled manner (speed setpoint = 0 V, controlled stop).
2. When speed = 0 rpm, disable the drive (enable = 0 V).
3. Activate the STO function.
Figure 11: Signal Diagram
Wiring examples
Single channel SIL2/PLd with IC830DP003 to 024
Technical Description and Data
ENABLE
Display
0 V
n602
+24 V
F602
0 V
opmode
+24 V
opmode with 'dot'
Motor has Torque
Safety
no
yes
no
yes
no
no
yes
no
Section 4
September 2020
40
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