Attaching A Surge Suppressor To Control Equipment - Mitsubishi Electric GOT SIMPLE Series Operation Manual

8.5
Attaching a Surge Suppressor to Control
Equipment
When the GOT fails to work properly, for example a communication error occurs, in synchronization with the ON/OFF status of
the specific control equipment, including a molded case circuit breaker, electromagnetic contactor, relay, solenoid valve, and
induction motor (hereinafter described as load), the GOT may be affected by surge noise.
In such a case, separate the ground cable and the communication cable from the load.
When the ground cable or communication cable has to be installed close to the load, attaching a surge suppressor is
effective.
Attach a surge suppressor closest to the load.
Measures against AC inductive load
The GOT ground cable and the communication cable
must not be installed close to the load.
Output equipment
such as PLC's
output module
Output
Measures against DC inductive load
The GOT ground cable and the communication cable
must not be installed close to the load.
Output equipment
such as PLC's
output module
Output
8 WIRING OF POWER SUPPLY SECTION
94

8.5 Attaching a Surge Suppressor to Control Equipment

L
C
L
o
R
a
d
AC
The surge suppressor must
be attached close to the load.
L
L
D
o
a
d
DC
The surge suppressor must
be attached close to the load.