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Wiring Precautions
• Control signal wires for the DI-16H2, terminal TB1-1 to TB1-11 and TB2-1 to TB2-8,
must be separated from the main circuit wire, power lines, and electric power lines.
• For the control signal wires, use shielded wires and manage their ends as shown in Fig. 3
to prevent any malfunction due to noise. Total wiring length must be 50 m or less.
• Connect both ends of wires not used as shielded wires to 0 V.
• For VS-616H3, VS-676VG3/VH3, and VS-616G5 series Inverters, connect the FG cable
of the DI-16H2 to the ground connecting terminal (12).
For Varispeed G7/F7 and Varispeed AC series Inverters, connect the FG cable of the DI-
16H2 to the Inverter control terminal E (G).
• The following table lists the required wire sizes for terminal block TB1.
[Terminal: MKDS1 series, manufactured by PHOENIX CONTACT]
Thin twisted wire
Solid wire
UL
CSA
CSA
Shielded sheath
Connect to terminal
TB3 (E) of DI-16H2
Insulate these parts with insulating tape.
AWG
I
2
[mm
]
[A]
1
16
12
1.5
16
12
–
32-16
10
–
28-16
10
–
28-16
10
Outer jacket
Fig. 3 Shielded Wire End Management
14
VAC
[V]
125
125
300
300
150
Do not connect this end.
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