Parker Hannifin Corporation
Pneumatic Division Europe
www.parker.com/pde
29
Integration Guide
Rockwell 440C-CR30
FRL-SIF-120
_EU
Parker Pneumatic
Generic Rockwell Wiring Schematic for 440C-CR30 (from the Rockwell Catalog)
Circuit Status
The E-stop is released and all output devices D1....D4 are OFF.
The Feedback Closed indicator is ON.
Operational Sequence
1. Press the Reset button.
All four output devices D1....D4 turn ON and the Feedback Closed indicator
turns OFF.
2. Press the E-stop button.
All four output devices D1....D4 turn OFF and the Feedback Closed indicator
turns ON.
With a short circuit across one of the output device contacts:
1. Press the Reset button.
All four output devices D1....D4 turn ON and the Feedback Closed indicator
remains ON. After approximately 50 ms, the output devices D1....D4 turn
OFF and the Feedback Closed indicator remains ON.
Each time the reset button is pressed, the output turns ON momentarily and then turns OFF. The CR30 Safety relay
detects the short circuit with the XOR logic in the LL2A function block. This block allows either the Feedback_OK or
Feedback_Fault to turn on the output devices, but not both signals.
The feedback indicator is ON when the E-stop is pressed and the outputs (D1...D4) are OFF.
When the E-stop is released and the reset button is pressed, this indicator turns OFF unless
one or more of the feedback contacts are shorted.
+24V DC
Reset
Feedback
Contacts
D4
Poppet Valve
E-stop
Feedback OK
Potential Feedback Fault
Feedback
Closed *
24V DC Com
05
CR30
4
0
3
0
0
0
1
0
2
0
A1
15
20 21
16
06
18
A2
07
19
08
10 11
12 13 14
09
17
D1
D3
D2
D1 D2 D3
*
One or more feedback circuits are closed
