PACMotion™ PSD
Installation and User Manual
Section 4
GFK-3168A
September 2020
Technical Description and Data
40
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
ENABLE Display
Motor has Torque Safety
0 V
0 V
n602
no
yes
0 V
+24 V
F602
no
yes
+24 V 0 V
opmode
no
no
+24 V +24 V
opmode with 'dot' yes
no
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
