Omron E5ZN - Page 28

14
Using the I/O Section Section 2-2
2-2-3 Wiring
The left sides of the terminal numbers in the following diagram are on the out-
side of the Unit and the right sides are on the inside of the Unit.
Power Supply • Connect to terminals 19 and 20, as shown in the following diagram.
• When reinforced insulation is required, connect the I/O to a device without
an exposed charged section or to a device with basic insulation suitable
for the maximum usage voltage of the I/O section.
• UL/CSA/CE Safety Standards
Use a SELV power supply with an overcurrent protection function.
A SELV power supply refers to a power supply with redundant I/O or with
increased insulation and with an output voltage of 30 Vr.m.s and a 42.4-V
peak or maximum 60 VDC.
Recommended power supply: S82K-05024 CD (OMRON) or S8VS-
06024A (OMRON)
• To ensure the rating of Main terminal disturbance voltage for class A in
EN61326, equip a noise filter (DENSEI-LAMBDA, MXB-1206-33 or equiv-
alent one) to the DC power line as close to the temperature controller as
possible.
Inputs Connect channel 1 to terminals 10 to 12 and channel 2 to terminals 4 to 6 as
follows, according to the input type:
Note Connect the terminals or set the parameter according to the following instructions to
prevent error indicators being lit for channels not being used.
• For upgraded pulse output models and analog output models:
With any type of sensor, the parameter “sensor error indicator used” (initial setting level) can
be used to prevent error indicators being lit for channels not being used.
• For the previous pulse output models (not upgraded):
• For thermocouple, infrared temperature sensor, or analog input:
Form a short-circuit between terminals 5 and 6 when channel 2 is not used, or between
terminals 11 and 12 when channel 1 is not used.
•For Pt:
Connect a resistance of 100 to 125
Ω between terminals 4 and 5 when channel 2 is not
used, or between terminals 10 and 11 when channel 1 is not used.
Form a short-circuit between terminals 5 and 6 when channel 2 is not used and between
terminals 11 and 12 when channel 1 is not used.
19
21
20
13
14
15
7
8
9
1
2
3
22
23
24
16
17
18
10
11
12
4
5
6
E5ZN-SCT24S-500
19
20
+
−
24-DC input
power supply
19
21
20
13
14
15
7
8
9
1
2
3
22
23
24
16
17
18
10
11
12
4
5
6
E5ZN-SCT24S-500
13
14
15
7
8
9
1
2
3
16
17
18
10
11
12
4
5
6
E5ZN-SCT18S-500
−
+
10
11
12
−
+
4
5
6
V
−
+
4
5
6
V
−
+
ch1
10
11
12
4
5
6
10
11
12
ch1ch1 ch2ch2ch2
Thermocouple or infrared
temperature sensor
Pt
Analog input