7
• Tightening the screws with too much
force can damage the ST unit’s plastic
case.
• The necessary torque is 0.5N
•
m.
Wiring
y
To avoid an electric shock, prior to
connecting the ST unit’s power cord
terminals to the power terminal block,
confirm that the ST unit’s power supply is
completely turned OFF, via a breaker, or
similar unit.
y
Any other power level can damage both
the ST and the power supply.
y
When the FG terminal is connected, be
sure the wire is grounded.
1.
Wiring the AC type power supply
cable
• When the FG terminal is connected, be
sure the wire is grounded. Not ground-
ing the ST unit will result in excessive
noise. Use your country's applicable
standard for grounding.
Power Cord Specifications
Insertion Slot Recess
Hook the fastener on the
Recess,
Panel
Installation Fastener
ST
Hook
and secure the fastener
on the panel with a
screw.
AC Power Cord
Grounding Wire
Po
wer Cord
Dia
meter
Double-Insulation Wire
1.25 mm
2
to 2.0 mm
2
(16 to 14 AWG)
1.25 mm
2
to 2.0 mm
2
(16 to 14 AWG)
Reco
mmen
ded
R
ing
T
e
rm
in
al
*1
*1 In order to prevent a short circuit caused by
loose screws, make sure to use a crimp-type
terminal with insulating sleeve.
V2-MS3 compatible
(J.S.T. Mfg. Co.,Ltd).
V2-P4 compatible
(J.S.T. Mfg. Co.,Ltd).
Over
Φ
3.2 mm
[0.13 in.]
Under
6.0 mm
[0.24 in.]
Over
Φ4
.3 mm
[0.17 in.]
Under
7.0 mm
[0.28 in.]
