Mitsubishi Electric CR750-D Instruction Manual page 36

2Unpacking to installation
[Caution] Be sure to use a shield cable for the emergency stop wiring cable. And when operating in an
environment that is easily affected by noise, be sure to install the included ferrite core (model number:
E04SR301334, manufacturer: Seiwa Electric Mfg. Co., Ltd.). Be sure to place the ferrite core in 300mm
or less from the connecting terminal section.
CAUTION
CAUTION
CAUTION
2-24 Installation
Make sure there are no mistakes in the wiring. Connecting differently to the way
specified in the manual can result in failures, such as the emergency stop not being
released. In order to prevent from occurring, please be sure to check that all functions
(such as the teaching box emergency stop, customer emergency stop, and door switch)
are working properly after the wiring setup is completed.
You should always connect doubly connection of the emergency stop, the door switch,
and the enabling switch. In connection of only one side, if the relay of customer use
should break down, it may not function correctly.
And, the output contacts from the robot controller (robot error output, emergency stop
output, mode output, addition axis contactor control output) are dual contacts (syn -
chronizes). You should connect surely by dual line with the customer's equipment as
well as connection of the emergency stop and the door switch.
When using several emergency stop switches, perform wiring carefully to make sure
that each emergency stop switch functions independently. Check and make sure that
the emergency stop does not function under an AND condition (when multiple
emergency stop switches are ON at the same time).