Owner manual

Chapter 2: Install and Wire ■ 18 ■ Watlow Series N7
Ó
Warning: Use National Electric (NEC) or other country-spe-
cific standard wiring and safety practices when wiring and
connecting this controller to a power source and to electri-
cal sensors or peripheral devices. Failure to do so may
result in damage to equipment and property, and/or injury
or loss of life.
Note:
To prevent ground loops, maintain isolation from input to
output when using switched dc or analog process outputs.
Use ungrounded thermocouples.
Event Outputs
• Switched dc
• 30 mA at 5VÎ (dc) nominal
Figure 18a — Switched DC
NOTE: Terminals 5, 6, 13 or 14 can be used for the common connection.
1
2
345678
91011
12
13
14
15
16
(common) 13
12
+
–
Figure 18e — Event Output 4
1
2
345678
91011
12
13
14
15
16
(common) 5
4
–
+
Figure 18d — Event Output 3
(common) 13
11
+
–
1
2
345678
91011
12
13
14
15
16
Figure 18c — Event Output 2
16 pins
Outputs 1 & 2
Event Inputs 1 to 4
Event Outputs 1 to 4
1
2
3
4
5
6
1
2
345678
91011
12
13
14
15
16
(common) 5
3
–
+
Figure 18b — Event Output 1
Internal Circuitry
dc-
dc+
5VÎ (dc) @ 30 mA (dc)
Load
Switched DC
+
+5VÎ (dc)
(common)