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6.2
Power supply
CAUTION!
Electrical installation work may only be performed by authorised
electricians in accordance with local regulations.
Before any work takes place on electrical parts, the system must be
disconnected from the mains, steps must be taken to ensure that the power
is off and no live voltages remain present in the system, and the system
must be secured so that it cannot be switched back on again. Please note
the accident prevention regulations of government safety organisations
(e.g. BGV A2) and/or valid local regulations. Safety disconnectors are to
be provided on site.
To ensure compliance with protection class IP 67, the scope of the
equipment includes various sealing inserts for cables with a diameter of
4 to 10 mm. Unused threaded cable unions must be sealed using blind
inserts.
Terminal assignment plan, BASIC PCB
2
1
Fig. 4: Terminal assignment plan, BASIC PCB
1
PE connection to B1
2
Supply voltage 24 V AC/DC
3
Microfuse F1 T0.4 A
4
Alarm relay, potential-free changeover contact
5
CIP control signals 24 V AC/DC
6
0/4...20 mA conductivity
7
0/4...20 mA temperature
Connection of the supply voltage
According to EN 60204, section 8, in addition to the connections X1/1, 2 for the supply
voltage the LMIT09 DPV1 also has a connection for a protective earth conductor.
For the wall-mounted transmitter version, the equipotential bonding connection on the
attachment flange can also be used to connect the protective earth conductor.
Connection of the alarm relay
The LMIT09 DPV1 has an alarm relay with a potential-free changeover contact.
Terminal assignment: Terminal X1, pins: 3, 4, 5
NOTICE!
The alarm relay is activated or deactivated only in connection with a fault
message on the display (see
3
4
5
6
7
8
9
8
Transmitter coil
9
PT 100
10 Receiver coil
11
Colour of the integrated measuring cell
12 Colour of the external measuring cell
13 Equipotential bonding for external measuring cell at B2
Ä 9 'Troubleshooting' on page 97).
37
Installation
10
11
12
13
417101561 Rev. 4-06.2021
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