NAiS GT10, Technical Manual

Page: 44 / 195

GT10/GT30 2.2 Wiring the Power Supply
21
2.2 Wiring the Power Supply
The power supply should be wired by securely connecting the terminal on the rear of
the main unit to the terminal. Always use crimp terminals for wiring.
+24 V
0 V
(D–type ground)
F. E.
+24 V
0 V
(D
–
type
ground)
F.
E
.
+24 V
Use twisted wiring for the power supply
In order to minimize influence from noise, the wiring for the power supply should be
twisted.
Insulate the power supply inside a protective circuit
– In order to protect the unit against abnormal voltage from the power supply line, the
power supply should be an insulated type, and should be enclosed within a protective
circuit.
– A non–insulated regulator is used with the GT series.
– If a power supply device without an internal protective circuit is being used, power
should always be supplied to the GT series through a fuse or a similar protective device.
Keep the power supply voltage within the operating voltage range
Operating voltage range 21.6 to 26.4V DC
Use M3 crimp terminals
– The terminal screws are M3 screws. We recommend using crimp terminals for wiring
to terminals.
Maker Shape Model
Applicable
wiring Tightening
torque
Round 1.25–MS3 0.25 mm
2
to 0.5 N
·
m
JST Mfg. Front–opening
1.25–B3A
1.65 mm
2
JST Mfg.
Co., Ltd. Round
2–MS3 1.04 mm
2
to
Front–opening 2–N3A
2.63 mm
2
6.0 mm
max.
6.0 mm
max.
The tightening torque for terminal
base screws should be between 0.5
and 0.6 N
·
m, or less. Operating at a
higher force could cause damage.
If crimp terminals are not being
used, wire with a diameter of 0.5
mm
2
to 1.25 mm
2
should be used
for power cables.
For precautions concerning con-
formance to European EMC di-
rectives, please see “Power
Supply Terminals” on page 10.
Open–tip terminals Round terminals