Safety Application Example; Safety Application Example Described In This Manual - Mitsubishi Electric MELSEC iQ-F Series Quick Start Manual

1 PREPARATION
Before Connecting
Safety Devices
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1.2 Safety Application Example

This manual describes the settings and wiring of the safety main module (FX5-SF-MU4T5), the settings of the FX5U
CPU module, and the safety devices, such as emergency stop pushbuttons and safety light curtains, using the
following safety application example. To use the safety main module and safety devices correctly, assess risks based
on the user module configuration, and implement proper safety measures in accordance with the safety standards.
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1.2.1 Safety application example described in this manual

The following is the safety application example of a packaging machine configured using the safety main module
and safety devices (an emergency stop pushbutton and a safety light curtain).
This safety application controls activation and stopping of a filling machine and belt conveyor by turning ON/
OFF the main contact on the safety contactor which opens and closes the power of the filling machine and
belt conveyor. When the safety main module detects an error by the self-diagnostics, all outputs of the safety
contactor turn OFF regardless of the applied logic, and the filling machine and belt conveyor stop.
Welding of the safety contactor contacts is also monitored. If a contact is welded, the system does not start even
when the start switch or the reset switch is pressed.
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The following operations are performed by the logic of program 7 (
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Emergency stop pushbutton pressed
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Operation of the program 7 in the safety main module
1. After safety confirmation (emergency stop pushbutton: OFF, safety light curtain: not blocked), press the reset switches 1 and 2.
Then, press the start switch to turn ON the safety contactors of the filling machine and belt conveyor.
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2. When the emergency stop pushbutton is pressed and the safety light curtain is blocked, the filling machine and
belt conveyor operate as follows:
Emergency stop pushbutton
Filling machine
Belt conveyor
Emergency stop pushbutton pressed
3. Release the restart interlock with the reset switches 1 and 2, and turn ON the start switch.
4. The filling machine and belt conveyor run again.
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Safety Application
Required Products
Example
Packaging machine
Entire stop
Reset switch 1
Start switch
Reset switch 2
pressed
Stop Filling machine
Stop Belt conveyor
Entire stop Safety light curtain blocked
P. 13
Safety light curtain blocked
Run
Stop
Partial stop
) in the safety main module.
Filling machine
Safety light curtain blocked Partial stop
Belt conveyor