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8009389/YN39/V3-0/2015-08| SICKOPERATING INSTRUCTIONS|GM35
Subject to change without notice
PROJECT PLANNING INFORMATION
3.3.6 Installation preparation for the evaluation unit
Requirements The installation location for the evaluation unit was determined during project planning.
The maximum total cable length of all CAN bus connections in the GM35 measuring
system of 1000 m was taken into account, bearing in mind that the closer the device is to
the measuring point, the easier it is to use.
Installation location preparation
The evaluation unit is fitted with clips which enable it to be mounted easily using 4 screws,
even on an uneven surface.
▸ Based on the dimension drawing of the EvU according to
page 135, make sure sufficient
space is available at the planned installation location to fit and wire the EvU as well as to
pivot the enclosure door.
▸ Drill suitable openings as assembly points as required.
3.4 Preparations for electrical installation
The onsite supply and signal cables are laid beforehand to facilitate subsequent
installation and start-up of the GM35 system components. Suitable cable ducts or
conduits are installed for the prefabricated cables and delivered with the GM35 system
(marked with * in
“Cable routing diagram”).
The prepared cables are connected to the devices during installation or start-up by suitably
qualified personnel or by SICK Customer Service.
Already completed? If you have already used the separate document “Product Information and Planning Guide”
to complete the work described here prior to delivery of the device, please check that the
work done corresponds to the following instructions.
3.5 Electrical protection
Evaluation units of GM35, Power Supply 24 V; SCU I/O
• Insulation: Protection class 1 in accordance with EN 61140
• Insulation coordination: Overvoltage category II in accordance with EN61010-1
• Contamination: Degree of contamination II in accordance with DIN EN 61010-1
3.6 Specifications on electric isolation of the EvU
3.6.1 Electrical installation safety information
Connections SCU I/O
Relay contact <-> PE 860 V AC
Relay contact <-> relay contact 860 V AC
Relay contact <-> actuation 1376 V AC
Table 3: Characteristic data for electric isolation
WARNING: Hazard by voltage.
▸ Only allow an authorized electrician to work on the electric system.
▸ Observe the relevant safety regulations during all installation work.
▸ Take suitable protective measures against local risks and those arising
from the plant.
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