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2. Wiring and Connection
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2-5-2 Connecting the grounding cable
(1) Connecting the protective grounding (PE) and frame ground (FG)
Each unit has a terminal or mounting hole to connect PE (
) or FG.
Please connect an earth wire to the main ground of a cabinet or a machine frame at one point.
Ground each device according to the grounding conditions set forth by each country. (Typically, a
Y-connection neutral point ground is used in Europe.)
PE: Grounding to provide protection from electric shock, etc.
FG: Grounding to stabilize the operation of the devices, etc. (Suppress noise)
MDS-C1-V1/V2/SP
MDS-C1-CV
B-AL
SJ Series motor
HC Series motor
Grounding plate
POINT
Do not connect the grounding cable from
each unit directly to the grounding plate.
Noise from other units could result in
malfunctions.
(2) Grounding cable size
Earth wire size should follow the following table.
Type Grounding cable size (Required grounding)
MDS-C1-CV Unit Larger than thickness of wire connected to TE1 (L1/L2/L3). (PE)
MDS-C1-V1/V2/SP[] Unit Larger than thickness of wire connected to TE1 (U/V/W). (PE)
B-AL (AC Reactor) 5.5 mm
2
(AWG10) or more (FG)
Unit
Grounding
plate
Unit
Grounding
plate