Chapter 2 Installation
2.4 Grounding
The electrical devices should be grounded separately from power system and the two or more electrical devices should be grounded at a single point. The model 2000 is designed to resist actual noise and the device is sufficiently capable of withstanding noise, but grounding is very important in order to assure safe and stable system operation. Observe the following instructions and provide proper grounding.
When using the Ethernet module, refer to the ‘Ethernet installation and Wiring Guide’ (6F8C0879)
CAUTION
Always ground the model 2000.
Failing to ground the unit can cause electrocution or malfunction.
2.4.1Grounding Tips
Note the following when grounding:
(1)The model 2000 unit must not be a conductor for grounding current of other devices.
(Especially, high frequency current can cause trouble.)
(2)The grounding potential of the model 2000 base and expansion unit must be equal. (Ground at single point.)
(3)Do not connect to ground of motorized system (require high frequency separation)
(4)Do not connect to unstable ground (parts with unstable impedance such as screwed on painted parts or parts affected by vibration)
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