turck BL20-GW-CANOPEN, User Manual, Page: 74 / 95

Guidelines for Electrical Installation
D301087 1211 - BL20 CANopen 7-6
Protect against high frequency interference signals
7.3.5 Mounting Rails
All mounting rails must be mounted onto the mounting plate with a low impedance, over a large
surface area, and must be correctly earthed.
Mount the mounting rails over a large surface area and with a low impedance to the support system
using screws or rivets.
Remove the isolating layer from all painted, anodized or isolated metal components at the connection
point. Protect the connection point against corrosion (for example with grease; caution: use only
suitable grease).
Attention
In order to comply with radiation limit values in accordance with EN 55 011/2 000, the supply
lines of the power distribution module BL20-BR-24VDC-D for supplying the gateway with
power are to be fed through a ferrite ring (BL20PS416-ZBX-405). This is to be placed
immediately next to the connection terminals. From there on, it is not permitted to make
connections to further devices.
Figure 7-3:
Mounting options
A TS 35
B Mounting rail
C Mounting plate
D TS 35