Omron E5ZN - Page 30

16
Using the I/O Section Section 2-2
CT Input • CT input can be used with pulse output models only.
• When the heater burnout alarm is used, connect a current transformer
(CT) across terminals 16 and 17 for channel 1 and terminals 16 and 18 for
channel 2 (no polarity).
• Use E54-CT1 or E54-CT3 Current Transformers.
Linear Voltage Output • Linear voltage output is allocated to auxiliary outputs 3 and 4 and can be
used with analog output models only.
• Terminals 16 and 17 are for auxiliary output 3 (SUB3) and terminals 16
and 18 are for auxiliary output 4 (SUB4).
• Do not apply voltage to the linear voltage output terminals.
Event Input • When event input is used, connect to terminals 3 and 9.
• Do not apply voltage to terminals 3 and 9.
• The inrush current that flows from E5ZN to the contact connected to ter-
minals 3 and 9 is approx. 7 mA.
• Use event inputs under the following conditions:
E5ZN-SCT24S/18S-500
16
17
18
13
14
15
7
8
9
1
2
3
10
11
12
4
5
6
16
17
18
13
14
15
19
20
21
7
8
9
1
2
3
22
23
24
10
11
12
4
5
6
16
17
18
CT1
CT2
ch1
ch2
E5ZN-SCT24S/18S-500
16
17
18
13
14
15
7
8
9
1
2
3
10
11
12
4
5
6
16
17
18
13
14
15
19
20
21
7
8
9
1
2
3
22
23
24
10
11
12
4
5
6
Output Specifications
Linear voltage output Voltage output range: 1 to 5 VDC
0 to 5 VDC
Allowable load impedance: 10 kΩ min.
SUB3
SUB4
DC1-5V/
DC0-5V
DC1-5V
/
DC0-5V
16
17
18
+
−
+
E5ZN-SCT24S/18S-500
7
8
9
1
2
3
13
14
15
16
17
18
10
11
12
4
5
6
7
8
9
1
2
3
19
20
21
13
14
15
22
23
24
16
17
18
10
11
12
4
5
6
Contact input ON: 1 kΩ max., OFF: 100kΩ min.
No-contact input ON: residual voltage of 1.5 V max., OFF: leakage current of
0.1 mA max.
−
+
3
9
Non-contact inputContact input