Mitsubishi Electric C80 series Maintenance Manual page 15

(6) Usage
CAUTION
Use C80 in an environment that meets the general specifications contained in "C80 Series Connection and
Setup Manual". Using C80 in an environment outside the range of the general specifications could result in
electric shock, fire, operation failure, and damage to or deterioration of the product.
When mounting the module, be sure to insert the module fixing hook on the module's bottom into the mod-
ule fixing hole on the base unit. Incorrect mounting could cause an operation failure or a damage/drop of
the unit.
Hold down the module loading lever at the module bottom and securely insert the fixing hook into the fixing
hole in the base unit. Install the module with the module fixing hole as a supporting point. Incorrect mount-
ing could cause an operation failure or a damage/drop of the unit.
Be sure to fix all the modules with screws to prevent them from dropping. The fixing screws (M3 x 12) are
to be prepared by user.
Tighten the screw in the specified torque range. Under tightening may cause a drop, short circuit or oper-
ation failure. Over tightening may cause a drop, short circuit or operation failure due to damage to the screw
or module.
Be sure to install the extension cable to connectors of the basic base unit correctly. After installation, check
them for looseness. Poor connections could cause an input or output failure.
Completely turn off the externally supplied power used in the system before installation or removing the
module. Not doing so could result in electric shock or damage to the product.
Do not install/remove the module on to/from base unit or terminal block more than 50 times, after the first
use of the product. Mounting/dismounting over 50 times may cause an operation failure.
Do not directly touch the module's conductive parts or electronic parts. Touching these parts could cause
an operation failure or give damage to the module.
Do not touch the heat radiating fins of CNC CPU module while the power is ON and for a short time after the
power is turned OFF. In this timing, these parts become very hot and may lead to burns. Remove the mod-
ules with close attention.
The metal part becomes the high temperature.
When removing the unit, always remove the fixing screws and then take the fixing hook out from the fixing
hole. Incorrect removal will damage the module fixing hook.
When the module fixing screws are used, remove the screws first and module from the base unit. Failure to
do so may damage the module.
The module surface temperature may be high immediately after power-off. When the module is removed,
pay attention to the burn injury.
Install an external emergency stop circuit so that the operation can be stopped and the power turns OFF
immediately when unforeseen situation occurs. A contactor, etc., is required in addition to the shutoff func-
tion mounted in the controller.
Turn OFF the power immediately if any smoke, abnormal noise or odor is generated from the controller,
drive unit or motor.
Only a qualified technician may disassemble or repair this product.
Do not alter.