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Instruction for use | Supercal 5
5. Wiring
5.1 Wiring Requirements
5.2 Opening the Calculator
To connect the inputs and outputs, remove the upper part of the calculator.
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Terminal
Designation
Description
Inputs
1, 2
2-wire technology
Temperature high
1, 2 and 5, 6
4-wire technology
3, 4
2-wire technology
Temperature low
3, 4 and 7, 8
4-wire technology
10
(+)
Pulse input flow sensor
11
(-)
9
+Vdc
Power supply for flow sensor
50
(+) pulse input additional pulse input 1
Pulse inputs
51
(-) pulse input additional pulse input 1
52
(+) pulse input additional pulse input 2
53
(-) pulse input additional pulse input 2
Outputs
16
(+) open-collector output 1
Energy-, volume- or tariff counter
17
(-) open-collector outputs 1 + 2
18
(+) open-collector output 2
Bus
24
M-Bus
Embedded M-Bus
25
M-Bus
DANGER
Danger due to electrical voltage!
The entire electrical wiring must be voltage-free.
CAUTION
Observe additional information!
Before commissioning, compare the conformity of the supply voltage with the information on the nameplate.
Provide a suitable switch or circuit breaker in the building installation. This switch must be installed near the
device (easily accessible) and marked as a disconnecting device.
An overcurrent protection device (rated current ≤ 10 A) is required for the mains cable.
5.3 Wiring
Overview of the connections:
For installing the heat meter and the associated subassemblies, the general regulations,
according to EN1434-Part 6, must be observed.
