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8
9
CAUTION:
Electrical shock hazard! Make sure to remove AC power to
the controller before wiring input and output connections, and before
opening the controller housing.
Electrical Connections
mA
1
2
3
AC: L
N PE
4
5
6
7
8
9
10 11 12
13
14
15
16
17
–
+
Signal
Output
Hold
Input
Alarm
Relay
2
Relay
1
Power
Mains
1.
VAC live wire
2.
VAC neutral wire
3.
VAC protective ground wire
NOTE: Power is selectable for 110 or 220 VAC via an internal jumper.
Factory setting is indicated on the label on top of the controller.
See Appendix 3 on page 65 for directions on switching the power type.
4.
Low set relay resting position
5.
Low set relay common
6.
Low set relay working position
7.
High set relay resting position
8.
High set relay common
9.
High set relay working position
10.
Alarm relay resting position
IMPORTANT: The alarm relay functions as an “Active Low” device; e.g. it
switches OFF under alarm condition. Therefore the alarm display device should
be connected to the 'NC' contacts of the relay.
11.
Alarm relay common
12.
Alarm relay working position
13.
Hold function switch terminal 1
14.
Hold function switch terminal 2
15.
No connection
16.
0/4 - 20 mA for – current connection
17.
0/4 - 20 mA for + current connection
2.4
Cell/temperature sensor connections
2.5
18. Pt100/Pt1000 lead 1 terminal
19. Pt100/Pt1000 sense lead terminal
20. Pt100/Pt1000 lead 2 terminal
NOTE: If using a two-wire RTD, short terminal 19 to terminal 18.
NOTE: Pt100/Pt1000 is selectable via an internal jumper setting. Factory default
is Pt100. See “Jumper Positions” on page 65 for directions on switching
the RTD type.
21. Cell lead 1
22. Cell lead 2
Pt100/
Pt1000
18
19
20
21
22
cell