Siemens BT300 Installation Instructions Manual page 54

Chapter 5 - Control Unit
I/O Cabling and Fieldbus Connection
54 | 82
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Building Technologies
1. Connect the Ethernet cable (see the specification table in this section) to its
terminal and run the cable through the rubber grommets as other I/O cables.
2. Do one of the following:
– Protection class Type 1/IP21: Cut free the opening on the drive cover for the
Ethernet cable.
– Protection class Type 12/IP54: Cut the rubber grommets open to slide the
cables through. Should the grommets fold in while inserting the cable, just draw
the cable back a bit to straighten the grommets up. Do not cut the grommet
openings wider than what is necessary for the cables you are using.
NOTICE
To meet the requirements of the enclosure class Type 12/IP54, the connection
between the grommet and the cable must be tight. Therefore, lead the first bit of the
cable out of the grommet straight before letting it bend. If this is not possible, the
tightness of the connection must be ensured with insulation tape or a cable tie.
Figure 43: Leading the Cables, Left: IP21, Right: IP54.
3. Remount the drive cover.
NOTICE
When planning the cable runs, remember to keep the distance between the Ethernet
cable and the motor cable at a minimum of 11.8 in (30 cm).
Siemens BT300 HVAC Drive Installation
Instructions
DPD01148
2016-06-28