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3.2
Incoming inspection of devices and modules
3.2.1
Check of the rated data
Ordering code
3.2.2
Electrical check
7SS60
overall system
7SS60 Manual
E50417-G1176-C132-A2
First of all, check the complete ordering code (MLFB) of the units and modules to en-
sure that the versions delivered comply with the required rated data and functions, and
that the necessary and desired accessories are complete. The complete ordering
code of the devices and modules can be found on their rating stickers.
The 7SS601 measuring system has its rating sticker on the front of the housing.
The peripheral modules come with a rating sticker that is placed the housing in which
the peripheral module is installed during assembly of the system.
The ordering code and the meaning of its digits are shown in Table A-1. The most im-
portant point is the matching of the rated device data to the station ratings. This infor-
mation is found on the rating sticker. The measuring system is delivered with the bi-
nary inputs set in such a way that a dc voltage of the same level as the auxiliary supply
voltage is required for their activation. The jumper settings are listed in Appendix A.4.
The delivery status of the peripheral modules is shown in Appendix A.5.
The operating conditions must accord with VDE 0100 and VDE 0105 Part 1.
The unit should be in the final operating area for a minimum of two hours before the
power source is first applied. This time allows the device to attain temperature equilib-
rium, and prevents dampness and condensation.
Warning!
Some of the following checks are carried out in presence of hazardous voltages. They
must only be performed by qualified personnel which is thoroughly familiar with all
safety regulations and precautionary measures and pays due attention to them.
For a first electrical check of the system, it is sufficient to ensure a reliable earthing
and to connect the auxiliary supply voltage:
q
Connect an auxiliary supply voltage of the correct level and polarity to the inputs of
the unit via a switch or m.c.b. Please observe the connection diagrams in Appendix
A.2 and A.3.
q
Close the protective switch or m.c.b. to apply the auxiliary supply voltage.
Getting Started
3-3
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Table of Contents
Troubleshooting
