GS2107-WTBD datasheet(52/252 Pages) MITSUBISHI

52 / 252 page

7 - 4

7.1 Power Supply Wiring

7.1.4

The cause of malfunctions related wiring/Remedy

Grounding of the GOT may cause electric potential difference and noise interference, which may result in GOT

malfunctions. These problems may be resolved by taking the following measures.

■1.

Wiring path of the GOT's ground cable and power line

Bundling the GOT's ground cable and power line together can cause interference noise, which may result in

malfunctions.

Keeping the GOT's ground cable and power line away from each other will help minimize noise interference.

■2.

Connecting the ground cable from the panel that houses control equipment to the panel to

which the GOT is grounded

When running a single ground cable from the panel that houses such piece of control equipment as a sequencer to the

panel to which the GOT is grounded, the ground cable may have to be directly connected to the terminal on the GOT.

If electric potential difference between the ground points created by it causes malfunctions, lowering the voltage as

shown in Remedy 1 below may solve the problem.

Power supply

for power equipment

Power supply

for power equipment

Good: Wiring the ground cable away

from the power cable

Bad: Bundling the ground cable and

the power cable

Ground cable from

the panel that houses

control equipment

Connection cable

GS2107-WTBD Fiches technique(PDF) 52 Page - Mitsubishi Electric Semiconductor