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Caution
Correct Use
24
Installation
Section 2-2
For the connection to the power supply terminal block, twisted wires of 2 mm
2
or
greater cross sectional area and M 3.5 size crimp terminals must be used.
Tighten the screws on the terminal block to a torque of 0.5 N m.
Otherwise fire may occur.
Fork type
Round type
7 mm or less
7 mm or less
[Recommended terminals]
Maker
Type
(fork type)
Type
(round type)
Applicable Wire
(stranded wire)
Japan Solderless Terminal MFG
2-YS3A
2-3.5
2
Fuji Terminal
2-YAS3.5
V2-S3.5
1.04 to 2.63 mm
2
Nichifu Terminal
2Y-3.5
2-3.5
2-2-3
Grounding
The NT11S has a Grounding terminal
.
To prevent malfunctions due to excessive noise, and to prevent electric shock,
carry out class 3 grounding (grounding resistance of 100 or less) using a special-
purpose grounding cable (wire of at least 2 mm
2
).
Grounding wire length should be less than 20 m.
Note that if grounding wire is used in common with other equipment, or if it is con-
nected to a beam of a building, for example, the NT11S might be adversely af-
fected by this grounding.
Other
equipment
Other
equipment
Other
equipment
NT11S
NT11S
NT11S
Grounding common to several pieces of equipment:
¼
Incorrect
Grounding for individual equipment:
¼
Correct
Class 3 grounding
(grounding resistance
is 100
W
or less)
(After noting grounding details in this text.)
Carry out grounding correctly in order to prevent misoperation due to noise.
Summary of Contents for NT11S
Page 1: ...Cat No V029 E1 2 NT11S Programmable Terminal OPERATION MANUAL ...
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Page 5: ...iii NT series Programmable Terminal Operation Manual Produced June 1997 ...
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