A27 Plus Series User Manual - 20 -
4.3 The test of setting up an electric circuit
After the cabinet connection is completed, please use a multimeter to measure whether
there is short circuit at the AC input (L/N/PE) and DC output (VCC/GND) of the power
supply. If a short circuit is found, please check the circuit carefully. After ensuring the
cable is normal, switch on the power to electrify the cabinets to work.
Note: Please refer to the software user manual for software operation.
5．Maintenance
5.1 Preparation Tools
Preparation tools include: module front service tool, Phillips screwdriver, multimeter, etc.
5.2 Maintenance Instructions
5.2.1 Module Maintenance
Put the front service tool onto the surface of the module, then press the button of the tool
to suck out the module, hold the module by hand and release the button.
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