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IM 01B08B02-01EN

Installation and Wiring

Wiring

Wiring Precautions

WARNING

1) Be sure to turn OFF the power supply before wiring to avoid an electric shock. Use a tester or similar device to ensure

that no power is being supplied to a cable to be connected.

2) As a safety measure, always install a circuit breaker (an IEC 60947-compatible product, 5 A, 100 V or 220 V AC) in an

easily accessible location near the instrument. Moreover, provide indication that the switch is a device for turning off the

power to the instrument.

3) Wiring work must be carried out by a person with basic electrical knowledge and practical experience.

4) For the wiring cable, the temperature rating is 60 °C or more.

WARNING

For products with optional code /FM or /CSA:

1) Devices must be wired by professionally trained personnel.

2) For the field wiring parameters for YS1000 non-incendive instruments, see Hazardous location usage conditions of

Safety Standards in 9.1 General Specifications, in the YS1500 Indicating Controller/YS1700 Programmable Indicating

Controller User’s Manual.

3) In case of option code /FM, install devices according to NEC (National Electrical Code: ANSI/NFPA-70).

In case of option code /CSA, all wiring shall comply with Canadian Electrical Code Part I and local electrical codes.

CAUTION

1) Provide electricity from a single-phase power supply. If the power is noisy, install an isolation transformer on the primary

side, and use a line filter (recommended product: ZAC2205-00U, TDK) on the secondary side. When measures against

noise are taken, do not install the primary and secondary power cables close to each other.

2) For thermocouple inputs, wire the thermocouple using shielded compensating lead wire. Moreover, for RTD input, use

shielded wires with low conducting resistance and no resistance difference between the three wires.

3) If there is a risk of external lightning surges, use a lightning arrester, etc.

Note

Please wire from the central terminals.

YOKOGAWA YS1000 Series User Manual

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