2-5
Section
Power Supply and Input Wiring
17
2-5
Power Supply and Input Wiring
2-5-1 Terminal Block
The input terminal block has been designed with a removable terminal-screw
panel. When connecting the power supply or temperature sensor, the terminal-
screw panel can be conveniently removed before wiring.
•
To remove the terminal-screw panel, loosen the two screws alternately indi-
cated by A in the above diagram.
•
To mount the terminal-screw panel, insert it into the terminal block and secure
the two screws (A) alternately.
•
If the terminal block has been removed from the E5ZE Thermocouple Input
Model, when reconnecting make sure that the E5ZE’s lot number and serial
number are the same as those of the terminal block. Accuracy cannot be guar-
anteed for a Unit that has been connected to a terminal block with a different lot
number and serial number.
2-5-2 Wiring
•
Always turn OFF the power supply before performing any wiring.
•
Be sure to check polarity when connecting the power supply and temperature
sensor.
•
Wire the power supply cables separately from the temperature sensor cables
to prevent noise interference.
•
Use either crimp terminals or solder the wire ends when wiring terminals.
•
Tighten the terminal screws.
•
Wire the power lines close to the terminal block to prevent external force being
exerted on the power lines from torsion or weight.
•
Do not use the terminals that are marked “Don’t use.”
•
Do not bend the crimp terminals after they have been connected and the
screws have been tightened.