User Manual

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Siemens TX-I/O Engineering and installation guide CM110562en_13
Building Technologies Checking activities 2019-05-15
7 Checking activities
• The following check lists apply to the fully installed control panel on the panel
builder's site (not to the control panel on the customer site with all the external
wiring).
• The proposed sequence is intended as an aid to efficient working.
7.1 Location and installation of equipment
Check the layout of the equipment as follows:
Ref.
Item
OK
1
Does the breakdown and sequence of the module groups and
module types in separate I/O rows comply with the details in the
documentation?
Check the installation of the I/O modules and accessories as follows:
Ref.
Item
OK
1
Are the support rails firmly secured to the mounting frame?
Check the wiring for the following points:
Ref.
Item
OK
1
Have all the wire connections specified in the diagram been made
inside the control panel?
2
In situations with more than one AC 24 V transformer per I/O island:
Are the system neutral conductors (⊥) of the transformers
interconnected?
3
Is each power supply module supplied directly from the transformer?
4
Is the system neutral (⊥) earthed/not earthed as specified in the
plant wiring diagram?
5
Island bus: Are the CS and CD conductors two-core cables as
specified? Single wires must not be used.
6
Do the connection terminals used comply with the wiring diagram?
7
Have all the terminal screws been tightened?
8
Has a "pull test" been carried out on all connecting wires?
Check the electrical connections as follows:
Ref. Item OK
1
Disconnect the equipment as follows:
Unplug the I/O modules, leaving them in the "parked" position.
2
Carry out a point-to-point check of the connecting cables with an
optical or acoustic signal transmitter.
3
Carry out any insulation testing required in accordance with the
regulations. To this end, replace the devices required by the
regulations.
4
Replace all items removed in Step 1.
Introduction
Layout in the
control panel
Installat
ion of
I/O
modules and
accessories
Visual inspection
Electrical check