2 3 Wiring Precautions
2 3 Wiring Precautions
Before wiring, verify the label for correct model number and options. Switch
off the power while checking.
Care must be taken to ensure that maximum voltage rating specified on the
label are not exceeded.
It is recommended that the power supplied to of these units is protected by
fuses or circuit breakers rated at the lowest value possible.
All units should be installed inside a suitably grounded metal enclosure to
prevent live parts being accessible from human hands and metal tools.
All wiring must conform to appropriate standards of good practice and local
codes and regulations. Wiring must be suitable for voltage, current, and
temperature rating of the system.
Use caution to avoid over-tightening the terminal screws.
Unused control terminals should not be used as jumper points as they may
be internally connected, causing damage to the unit.
Verify that the ratings of the output devices and the inputs as specified in
Chapter 8 are not exceeded.
Electric power in industrial environments contains a certain amount of noise in
the form of transient voltage and spikes. This electrical noise can enter and
adversely affect the operation of microprocessor-based controls. For this
reason we strongly recommend the use of shielded thermocouple extension
wire which connects the sensor to the controller. This wire is a twisted-pair
construction with foil wrap and drain wire. The drain wire is to be attached to
ground at one end only.
Figure 2.2 Lead Termination
Figure 2.2 Lead Termination
Figure 2.3 Rear Terminal
Connection Diagram
Figure 2.3 Rear Terminal
Connection Diagram
*
*
*
*
*
*
*
*
*
22
7.0mm max.
3.2mm min.
Alarm 1
COM
V
RTD
6
7
11
12
13
14
8
9
10
20
19
18
15
16
17
1
2
3
4
5
OP1
90-264 VAC
47-63 Hz
15 VA
L
N
A
B
B
C
NO
OP2
C
NO
C
NO NC
Alarm 2
AO+
TX1
AO
TX2
AI, CT
+
EI
+
+ +
ALL RELAY CONTACTS:
RESISTIVE 2A/240VAC
+
+
