Rockwell Automation Publication 440C-WD001C-EN-P - June 2015 23
Enabling Switch (GripSwitch) with Jog Function Chapter 4
Connected Components
Workbench Software
Figure 12 - Connected Components Workbench Example
Logic Level B1 block is an XOR, rather than a simple OR. The Selector switch
chooses either the gate interlock switch or GripSwitch. If a short circuit to 24V
occurs on terminal 5, and the gate closed behind the operator, the GripSwitch
would be bypassed if the simple OR block were used. To avoid a potential bypass
situation, an XOR block is used. The SOF1 output block turns off if both the
gate switch and GripSwitch were both on.
The SOF2 jog output is only enabled when the GripSwitch is both selected and
en
abled. Therefore, when the Selector switch is set to the gate switch, the jog
button is disabled. The jog parameter is set to 50 (50 x 50 ms), which is
2.5seconds. When the jog switch is held down, the PF525 jogs the motor for 2.5
seconds. If the jog button is released sooner than 2.5 seconds, the motor stops
immediately.
Circuit Status
The safety gate is closed. The selector switch is set to Gate Switch. The
GripSwitch is off and the Jog switch is off. The PF525 is off.
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