Wiring
19
4
Wiring
#
Warning!
• The electrical connection must only be carried out by an electrical technician.
• The electrical technician must have read and understood these Operating Instructions and must
adhere to them.
•
Before beginning
the connection work, ensure no voltage is applied to any cable.
4.1
Electrical connection
4.1.1
Overview
You have the following connection options at your disposal:
• Direct connection to the transmitter via current output 1 (terminals 31 /32)
• Connection via the 4 ... 20 mA circuit
!
Hinweis!
• Connect unused signal cores of input and output cables to the internal PE rail of the transmitter.
• The current/resistance input may only be connected with a shielded cable, whereby the shield
must be connected to the PE rail of the transmitter.
• Make sure that the grounding in the connection compartment cover is connected to the PE rail
in the housing by means of the PE line.
• The measuring circuit must have a minimum load of 250
Ω
in current output 1.
• Current output 1 is permanently set to "4 ... 20 mA".
• Without an external power supply, communication via current output 1 is only possible if the
jumper setting is "active".
Summary of Contents for Topcal S CPC310
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