Wiring; Wiring Precautions - Mitsubishi MELSEC-Q Q68TD-G-H02 User Manual

5. WIRING

The following explains the wiring precautions and module connection
example.

5.1 Wiring Precautions

External wiring that is less susceptible to noise is required as a
condition of enabling a highly reliable system and making full use of the
capabilities of Q68TD-G-H02.
(1) Use separate cables for the AC control circuit and the external
input signals of the Q68TD-G-H02 to avoid the influence of the AC
side surges and inductions.
(2) Always place the thermocouple at least 100mm away from the
main circuit cables and AC control circuit lines. Fully keep it away
from high-voltage cables and circuits, which include high frequency
waves, such as an inverter's load circuit. Not doing so will cause
the module more susceptible to noises, surges and inductions.
(3) The following wiring is required for the product to comply with the
EMC and Low Voltage Directives.
Q68TD-G-H02
(a) Use shielded cables for every external wiring and use the
(b) For wiring between A6CON4 and a relay terminal block, use
(c) Before touching the relay terminal block, always touch the
A6CON4
AD75CK cable clamp to ground to the panel. AD75CK can
ground four cables together when using cables with outer
diameter of about
shielded cables to ground to the panel. In addition, keep the
wiring distance within 3m.
grounded metal to discharge the electricity charged in the
body.
In a control panel
Relay
terminal
block
20(7.87) to 30cm
(11.81 inch)
7mm.
9
AD75CK
Strip off
the outer
sheath