Replacing Controller 703 By Controller 70304 - M&C 70304 Instruction Manual

The electrical connection of the controller 70304 takes place at the terminals on the rear side of the housing and
for the controller 70304.2 at the terminals of the sidewalls.
Wiring plan controller 70304 and 70304.2
Connector block / Function
terminal
3/1 Mains L
3/2 Mains N
3/7 Alarm 2
High temperature
3/8
limiter with contini-
ous cutoff
3/4 Alarm 1
Low temperature
3/5
2/6 Triggering
Solid State Relais
2/8
2/2
2/3 Connection sensor
2/4
For controller with mA-output (optional):
Connector block / Function
terminal
1/6 mA output
1/7 mA output
11.1

REPLACING CONTROLLER 703 BY CONTROLLER 70304

Terminals old controller 703
12
AC 110-240 V
50/60 Hz 8 VA
3 A 250 V AC
resistive load
3A 250 V AC
resistive load
+ 12 V 30 mA
0V
+ Thermo couple
- Thermo couple
+
-
L1
N
242
243
142
143
81
80
111
112
113
Temperature controller 70304 | 1.02.00
Opens exceeding the ac-
tual value by
+10 °C
Closes reaching the set
value –10 °C
Pt100 two wire
Pt100 two wire
Terminals new controller 70304
3/1
3/2
3/7
3/8
3/4
3/5
2/6
2/8
2/2
2/3
2/4
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Indication in the display
at normal operation
2 (closed)
)
1 (closed
3 (triggered)