Peripheral Modules - Siemens SIPROTEC 7SS60 Manual

7.1.2

Peripheral modules

Panel flush
mounting or
cubicle mounting
7SS60 Manual
E50417-G1176-C132-A1
To increase the pick-up threshold of a binary input to approx. 74 V, one jumper posi-
tion per input must be changed. Figure A-5 shows the assignment of the jumpers to
the binary inputs, and their location on the p.c.b.
q
Slip away the covering caps at the top and bottom of the front panel, making acces-
sible one screw each in the top and bottom center. Unscrew these two screws.
Warning!
Electrostatic discharges via the component connections, the p.c.b. tracks or the con-
necting pin must be avoided under all circumstances by previously touching an
earthed metal surface.
q
Pull out the module by taking it at the front cover and place it on a surface which is
suited to electrostatically endangered components (EEC).
q
Set the jumpers according to Figure A-5.
q
Insert the module into the housing.
q
Fix the module into the housing by tightening the two fixing screws.
q
Re-insert the covers.
q
Slip away the covering caps at the top and bottom of the housing front, making ac-
cessible 4 elongated holes.
q
Insert the unit into the panel cutout or cubicle mounting frame and fix with four
screws (a dimension drawing is shown in Figure 9-2).
q
Unscrew the screws next to the fixing screws to remove the front cover.
q
A solid low-resistant and low-inductive operating earth has to be connected to the
housing's rear wall using at least one of the two M4 screws. Earth tapes according
to DIN 72333 Form A are suitable for this.
The peripheral modules are selected in accordance with the station configuration, re-
fer to section 4.1. It may be necessary to adapt the auxiliary voltage of the modules or
the required contact (NC/NO contact) to the particular station conditions.
Warning!
Electrostatic discharges via the component connections, the p.c.b. tracks or the con-
necting pin must be avoided under all circumstances by previously touching an
earthed metal surface.
Installation and Commissioning
7-3