Rockwell Automation Publication 440C-WD001C-EN-P - June 2015 15
Cat 1 Stop with GuardShield Light Curtain, T-15 Interlock, E-Stop, and PowerFlex 525 Chapter 2
Connected Components
Workbench Software
Figure 6 - Connected Components Workbench Example
Circuit Status
The light curtain is clear. The gate switch is closed. The E-stop is reset. The
CR30 safety outputs at terminal 17, 18, and 19 are ON. The PF525 shows an
F059 fault. The motor is off.
Operational Sequence
Table 5 - Operational Sequence
Action Taken Results
1. Press the drive Stop button. The F059 Fault on the PF25 is cleared. The motor is ready
to run.
Normally, the motor would be stopped by the machine
control system, which is not shown in the schematic.
2. Press the drive Start button. The motor turns ON. The drive can now be used for normal
production processes.
The speed of the motor is controlled by the Drive Pot,
located on the front of the PF525.
3. Do any of the following actions:
– Block the light curtain,
– Open the gate switch, or
– Press the E-stop.
The power is immediately removed from terminals 17,
and the drive executes a ramp to stop command in 1
seconds (P042 is configured for 1s). One second later,
terminals 18 and 19 turn off, and the PF525 executes a
safe torque off function. The PF525 shows an F059 fault in
its display.
4. Do the opposite action from Step 2:
– Clear the light curtain,
– Close the gate switch, or
– Release the E-stop.
The CR30 safety outputs at terminal 17, 18 and 19 are ON.
The PF525 still shows an F059 fault. The motor remains
off.
Go to Step 1.
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