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Caution – Yokogawa Standalone MW100 User Manual

Page 98

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2-10

IM MW100-01E

2.4 Connecting Signal Wires

CAUTION

• If a large pulling force is applied to the input/output signal wires connected to the

MW100, the terminal or signal wire may break. To prevent this from happening,
secure all the wiring cables to the installation panel.

• Do not apply a voltage exceeding the value indicated below to the input

terminals of the universal input modules. Doing so can damage the modules.
• Maximum input voltage
Voltage range of 1 VDC or less, TC, RTD, and DI (contact): ± 10 VDC
Voltage range of 2 VDC or more, and DI (LEVEL): ± 120 VDC
• Maximum common mode voltage
Between channels: 250 VACrms (50/60 Hz) (-H04)

120 VACrms (50/60 Hz) (-M10)

Input to ground: 600 VACrms (50/60 Hz)

• Do not apply a voltage exceeding the values indicated below to the input

terminals of the DCV/TC/DI input module. Doing so can damage the module.
• Maximum input voltage
Voltage range of 1 VDC or less, TC, and DI (contact): ± 10 VDC
Voltage range of 2 VDC or more, and DI (LEVEL): ± 120 VDC
• Maximum common mode voltage
Between channels: 120 VACrms (50/60 Hz)
Input to ground: 600 VACrms (50/60 Hz)

• Do not apply a voltage exceeding the value indicated below to the input

terminals of the 4-Wire RTD resistance input module. Doing so can damage the
module.
• Maximum input voltage
Voltage range of 1 VDC or less, RTD, resistance, and DI (contact): ± 10 VDC
Voltage range of 2 VDC or more, and DI (LEVEL): ± 120 VDC
• Maximum common mode voltage
Between channels: 120 VACrms (50/60 Hz)
Input to ground: 600 VACrms (50/60 Hz)

• Wiring of the Strain Input Module (-NDI)
When connecting a bridge head, in order that the empty weight of the cable

does not exceed 5 kg, ensure that the cable does not hang down more than 1.5
m (the distance to the floor). If the cable hangs longer than 1.5 m, secure the
cable to the installation panel or some other location.

• Do not apply a voltage exceeding the value indicated below to the input

terminals of the strain input modules. Doing so can damage the modules.
• Maximum input voltage: ± 10 VDC
• Maximum common mode voltage
Between channels: 30 VACrms (50/60 Hz)
Input to ground: 250 VACrms (-B12, -B35), 30 VACrms (-NDI) (50/60 Hz)

• Do not apply a voltage exceeding the value indicated below to the input

terminals of the pulse input module. Doing so can damage the module.
• Maximum input voltage: ± 10 VDC
• Maximum common mode voltage
Input to ground: 250 VACrms (50/60 Hz)

• When using the pulse input module with contact input, the measured signal

becomes easily affected by wiring impedance at high speed. The cable should
be approximately 25 m or less when the pulse width is 0.05 ms, or 500 m or less
at 0.5 ms. The wiring impedance varies depending on the such things as the
cable length, type, and wiring conditions.