Electrical Connections; Connection Instructions; Wiring Diagram, Module And Signal Numbers - INTEGRA Metering CALEC energy master Installation And Operating Instructions Manual

12 Electrical connections

12.1

Connection instructions

Devices with 100 - 240 VAC connections must have a safety fuse with a max. 10 AT,
and must be capable of being made voltage-free by means of an isolating element!
The device must be connected to the same electric circuit and the same fusing, switch-
ing and isolating elements as the corresponding heating or cooling system.
If the device is additionally connected via fusing, switching and isolating elements, then
these must be protected against unauthorised access (e.g. by security seals), so that the
device cannot be put out of operation by unauthorised persons.
12.2

Wiring diagram, module and signal numbers

Below are two examples of wiring diagrams in which the module numbers and signal numbers or
signal designations are shown:
Basic unit with 3 modules (right
to left): M-101-Prot-AC[I]-CT
• CPU module 2 x Pt100
• Input module for flow signal
• Mains power supply
(supply module)
• Designation:
• Module numbers
• Signal designation accord-
ing to standard diagram of
the application
Input
Modul 2
Qv, Qv1
Qv2, STA
Note on input module:
Right-hand pair of terminals:
®
CALEC energy master installation and operating instructions
Fully assembled unit with 7 modules (right to left):
EM-101-Prot-AC[MMOOI]-CT
• CPU module 2 x Pt100
• Input module for flow signal
• 2 output modules for 4 analogue output signals, e.g. for a
building services management system
• 2 M-Bus modules for data reading with 2 M-Bus master units
• Mains power supply (supply module)
• Designation:
• Signal numbers, without signal designation
• Signal designation according to the standard diagram of the
application
CPU
Modul 1
Th
Tc
Left-hand pair of terminals: Power via calculator
External supply
M-Bus M-Bus Output
Modul 6 Modul 5 Modul 4
Schnittst.2 Schnittst.1 Ausgang 3
Ausgang 4
Output Input CPU
Modul 3 Modul 2 Modul 1
Ausgang 1 Eingang 1 Pt100 1
Ausgang 2 Eingang 2 Pt100 2
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