4 Switch Installation
26
Wieland Electric GmbH | BA001047 (Rev. A) | 06/2018
4.5.3
Grounding the device
Attention!
Do not disconnect modules or cabling unless the power is first switched off.
The device only supports the voltage outlined in the type plate. Do not use any other power components except
those specifically designated for the switch device.
Attention!
Before connecting the device properly ground the device. Lack of a proper grounding setup may result in a safety
risk and could be hazardous.
Attention!
Do not service equipment or cables during periods of lightning activity.
Attention!
Do not service any components unless qualified and authorized to do so.
Attention!
Do not block air ventilation holes.
Electromagnetic Interference (EMI) affects the transmission performance of a device. By properly ground-
ing the device to earth ground through a drain wire, you can setup the best possible noise immunity and
emissions.
By connecting the ground terminal by drain wire to earth ground the Switch and chassis can be ground.
Note
Before applying power to the grounded Switch, it is advisable to use a volt meter to ensure there is no voltage differ-
ence between the power supply's negative output terminal and the grounding point on the Switch.
ATTENTION
ATTENTION
ATTENTION
ATTENTION
ATTENTION
NOTE
Connection to
Grounding Point
Drain Wire with Lug
Figure 4.8 Grounding Connection
