Siemens 7SG164 Ohmega 400 Series Manual page 97

1 Unpacking, Storage and Handling
On receipt, remove the relay from the container in which it was received and inspect it for obvious damage. It is
recommended that the relay modules are not removed from the case. To prevent the possible ingress of dirt, the
sealed polythene bag should not be opened until the relay is to be used.
If damage has been sustained a claim should immediately be made against the carrier, also inform the local
Siemens office, using the Defect Report Form in the Maintenance section of this manual.
When not required for immediate use, the relay should be returned to its original carton and stored in a clean, dry
place.
The relay contains static sensitive devices, these devices are susceptible to damage due to static discharge and
for this reason it is essential that the correct handling procedure is followed.
The relay's electronic circuits are protected from damage by static discharge when the relay is housed in its case.
When individual modules are withdrawn from the case, static handling procedures should be observed.
•
Before removing the module from its case the operator must first ensure that he is at the same potential as
the relay by touching the case.
•
The module must not be handled by any of the module terminals on the rear of the chassis.
•
Modules must be packed for transport in an anti-static container.
•
Ensure that anyone else handling the modules is at the same potential.
As there are no user serviceable parts in any module, there should be no requirement to remove any component
parts.
If any component parts have been removed or tampered with, then the guarantee will be invalidated. Siemens
reserve the right to charge for any subsequent repairs.
2 Recommended Mounting Position
The relay uses a liquid display (LCD) which is used in programming and or operation. The LCD has a viewing
angle of ± 45º and is back lit. However, the best viewing position is at eye level, and this is particularly important
when using the built-in instrumentation features.
The relay should be mounted to allow the operator the best access to the relay functions.
3 Relay Dimensions
The relay is supplied in an Epsilon case 16. Diagrams are provided elsewhere in this manual.
4 Fixings
4.1 Crimps
AMP PIDG or Plasti Grip Funnel entry ring tongue
Size AMP Ref
2
0.25-1.6mm 342103
2
1.0-2.6mm 151758
4.2 Panel Fixing Screws
2-Kits – 2995G10046 each comprising:
•
Screw M4 X10
2106F14010 – 4 off
•
Lock Washes
©2011 Siemens Protection Devices Limited
7SG164 Ohmega 400 Series Installation
Chapter 8 Page 3 of 4