Table of Contents
Advertisement
Wiring CT Inputs and Control/Alarm Outputs
2-5-6 Thermocouple Input
2-5-7 Platinum Resistance Thermometer Input
2-6
Wiring CT Inputs and Control/Alarm Outputs
• The terminal polarity varies with the control point. Be sure to check polarity
when connecting thermocouples to the terminal block.
• When extending the input lead wires, connect compensating conductors that
match the thermocouple used. Do not solder the ends of the thermocouple or
compensating conductors.
• Never remove the cold junction compensator connected to terminals 13 and
15.
• Do not touch the cold junction compensators.
• Short-circuit the positive and negative terminals of each control point that is not
used. The process value for each control point that is not being used will be the
ambient temperature of the terminal block.
• The terminal polarity varies with the control point. Be sure to check polarity
when connecting platinum resistance thermometers to the terminal block.
• When extending the input lead wires, make sure that the conductor resistance
is the same for the A terminal and two B terminals.
• Connect a 100- to 200-Ω resistor between the A and B terminals of any unused
control point, and short-circuit the two B terminals of any unused control point.
The process value for each control point that is not being used will correspond
to the resistance of the resistor connected to the terminals.
CT inputs and control/alarm outputs are connected using wiring-reduction de-
vices. Always use E5ZE-CBLjjj Connecting Cables to connect the E5ZE to
the wiring-reduction devices. Refer to the wiring-reduction device datasheet for
details, including wiring precautions.
Use the identification labels provided for each cable to prevent incorrect wiring of
the CONTROL, ALARM, and CT INPUT connectors.
FG terminal: Connect to
improve noise resistance
E5ZE-CBLjjj Connecting Cable
Cable identification label
Hood: Connect to
the FG terminal.
Section
2-6
19
Advertisement
Chapters
Table of Contents
Troubleshooting
