VibroSystM DMV-100, Installation Manual

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35 DMV-100 Rotor Creep and Speed Detector - Installation Manual
5.3 Cabling the DMV-100 Unit
Warning - Danger Caution
•
The DMV-100 Unit power supply and grounding connection should be installed in accordance with
national and local electrical code.
•
To ensure protection, the chassis grounding wire must be of a heavier gauge than the grounding
wire associated with the AC input.
5.3.1 Connecting the Power Input
The most common method of connecting the AC-input to the power supply connector is through the use of a
three-wire electrical grounding-type cord (not supplied) fitting into a grounding-type power outlet, the socket
outlet combination serving as the main disconnect device.
For safety purposes, a 15A circuit breaker should also be included in the AC-input wiring. Several
instruments may be connected to a circuit protected by a circuit breaker. Each instrument must however
have its own disconnect device.
•
Mechanical characteristics
Recommended wire size: 1,5 mm
2
[16 AWG] (600V rating)
5.3.2 Connecting the Protective Conductor Terminal
The protective conductor terminal must be connected to a grounding point
in compliance with local regulations. Grounding is essential for safety
purposes.
Mechanical characteristics
Wire size: at least 1,5 mm
2
[16 AWG], up to 6 mm
2
[10 AWG]
Note: In cabinets housing several instruments, it is common practice to connect only Line
and Neutral. To prevent ground loops, only the protective conductor terminal gets
connected to ground.