Check operation and condition of all safety devices
WHAT YOU NEED
Tools:Electrically Insulated Screwdriver
Safety Equipment:Standard Personal Protective EquipmentCut-resistant Gloves
All saws
- Check that the E‑stop button and the lanyards (if fitted) put the saw into an emergency stop state.
- Check that the saw chamber door cannot be opened with the control on.
- Check that the control cannot turn on with the saw chamber door open.
Safety relay saws
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Check that the contactor interlocks function correctly by manually pressing CES1 and CES2, one at a time while the saw control is off, with an insulated screwdriver and ensure that the control cannot turn on.
Note: the CES1 and CES2 contactors are located in the left-hand electrical cabinet.
- Check that there is a 5-second time delay between pressing the E‑stop button and being able to open the saw chamber door.
- If feeder safety sensors are fitted, check that removing the feeder transparent covers puts the saw into an emergency stop state.
Safety PLC saws
- Check that removing the feeder transparent covers puts the saw into an emergency stop state.
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Check that the contactor interlocks function correctly by manually pressing CES1, CES2 and CES3, one at a time while the saw control is off, with an insulated screwdriver, and ensure that the "CES 1 and CES 2" or "CES 3" fault appears in Simple and that the control cannot turn on.
Note: The CES1, CES2 and CES3 contactors are located in the left-hand electrical cabinet. CES3 is sometimes labelled "HYD PP".
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Enter commissioning mode while the saw control is on and ensure that the CES3 contactor is disengaged. Press CES3 with an insulated screwdriver, and ensure that the "CES 3" fault appears in Simple and that the saw enters an emergency stop state.
Note: To enter commissioning mode, type "Q427=1" in the terminal window of PEWIN32PRO and press the Enter key. When finished, enter "Q427=0" to exit commissioning mode.
- Check that the CONTROL button needs to be held for at least 5 seconds to recover from a "CES 1 and CES 2" or "CES 3" fault.
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Enter commissioning mode while the saw control is on and open the saw chamber door. Spin the saw blade by hand to register a speed of above 100 rpm and ensure that the saw enters an emergency stop state.
CAUTIONSHARP BLADE: Wear cut-resistant gloves when handling the saw blade.
- If light curtains are fitted, cross the curtain momentarily while running the saw and ensure that the saw enters a paused state. Restart the saw, obstruct the curtain continuously and ensure that the saw enters an emergency stop state after 1 second.