Watlow Series L Temperature Limit Instrukcja Użytkownika Pobierz pdf (Strona 9)

Watlow Series L

•

Chapter 3: Wiring

Warning:

Use National Electric (NEC) or

other country-speci c standard

wiring and safety practices

when wiring and connect-

ing this controller to a power

source and to electrical sen-

sors or peripheral devices.

Failure to do so may result

in damage to equipment and

property, and/or injury or loss

of life.

WARNING:

If high voltage is applied to a

low-voltage controller, irrevers-

ible damage will occur.

Note:

Insulated terminals required for

quick connect style terminals.

For quick connect terminals

1, 2, 6, 7, 8, 9, and 10, AMP

P/N 3-520406-2 or equivalent

recommended. Use Amp crimp

tool P/N 58078-3, insert 90391-

For quick connect terminals 3,

4, and 5, AMP P/N 2-520405-2

or equivalent recommended.

Amp crimp tool P/N 58078-3,

insert 58079-3.

Figure 7a — AC Power Wiring

• Nominal voltage options:

• 24VÅ (ac)

• 120VÅ (ac)

• 230 to 240VÅ (ac)

Figure 7b — Thermocouple Input

Thermocouples are polarity sensitive. The negative lead (usually red) must be

connected to the negative thermocouple terminal.

• Input impedance: >10 MΩ

Thermocouple -

Thermocouple +

Figure 7c — RTD Input

(100 Ω Platinum DIN curve 0.00385 Ω/Ω/°C)

• Terminals S2 and S3 must be shorted for a two-wire RTD

• Nominal excitation current: 125 μA

RTD S1

RTD S2

RTD S1

RTD S2

RTD S3

2-Wire RTD3-Wire RTD*

*No lead resistance

compensation

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 20 21

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