User's Manual

38 Rockwell Automation Publication 440G-UM004C-EN-P - August 2020
Chapter 7 Application Examples
Wire to CR30 Safety Relay
The CR30 safety relay is a software configurable safety relay that can easily
interface with the 440G-MZ safety switch. Version 10 and later of the
Connected Components Workbench™ software has a locking function that is
useful for guard locking applications.
Figure 16
shows an example schematic. The CR30 safety relay monitors the
motor running signal from the PowerFlex 525 drive. When the motor is not
running, the safety gate can be unlocked, and the PowerFlex 525 drive goes to a
Safe Torque Off state.
Figure 16 - CR30 Safety Relay with 440G-MZ Safety Switch Schematic
Figure 17 on page 39 shows an example CR30 safety relay configuration that
works with the schematic in Figure 16
.
05
CR30
4030001020
A1 15 20 2116
06
18A2
07
19
08 10 11
12 13 14
09
17
24V DC Com
Reset
440C-CR30-22BBB
Unlock
Motor Not Running
Lock
Gate control
power supply
Gate control
circuit
4 Gnd
S1
S2
1 Stop
11 +24V DC
PowerFlex
525
2 Start
R5
t081=2
S
R6
Blue (Gnd)
Brown (+24)
440G-MZS20*NR*
Power to Release
No aux
Gray - Lock Cmd
White - OSSD 1
Black - OSSD 2
889D-F5NC-X
Safety Gate
+24V DC, Class 2, PELV
M
L1 L2L3
RT
VUW