Chapter 4
Installing driver
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27
4-5 Connecting
power
cables
4-5-1 Instructions for power supply
4-5-2 Power cables and ground wires
The minimum allowable wire sizes of power cables, ground wires, and other cables are listed below. We
recommend the thickest wires possible.
Allowable Wire Sizes (mm
2
)
Terminal/connector Symbol
HA-520-1M HA-520-1N,1P,1R HA-520-3
Power supply
terminal
R,T 1.25
Actuator connection
terminal
U,V,W,E 0.3
0.5
0.75
Connection
terminal
E 3.5
Regeneration unit
connection terminal
P,N 0.75
External I/O
connector
CN1
0.2mm
2
shielded cable
Encoder connector
CN2
0.3mm
2
twist pair shielded cable
Note 1. When bundling wires or encasing into conduits (plastic or metal pipes), use the wire of one
upper size.
Note2. In hot environments, such as the temperature in a cabinet, use heat-resistant cable (IV or HIV).
(1) Connect the power cable to the HA-520 driver only after installing
the driver on a wall.
(2) Ground the HA-520 driver, to avoid electric shock, malfunctions
caused by external noise, and for the suppression of radio noise
emissions.
Caution
Before connecting the power cable to the HA-520 driver, turn-off the
electricity to avoid electric shock. Failure to observe this caution may
result in electric shock or personal injury.
Warning
