Watlow EZ-ZONE RM Limit Module Rev C Instrukcja Użytkownika Pobierz pdf (Strona 23)

Warning: ç

Use National Electric (NEC) or other

country-specific standard wiring and

safety practices when wiring and

connecting this controller to a power

source and to electrical sensors or pe-

ripheral devices. Failure to do so may

result in damage to equipment and

property, and/or injury or loss of life.

Note:

Maximum wire size termination and

torque rating:

• 0.0507 to 3.30 mm

(30 to 12 AWG)

single-wire termination or two 1.31

(16 AWG)

• 0.8 Nm (7.0 in-lb.) torque

Note:

Adjacent terminals may be labeled

differently, depending on the model

number.

Note:

To prevent damage to the controller,

do not connect wires to unused ter-

minals.

Note:

Maintain electrical isolation between

digital input-outputs, switched dc/open

collector outputs and process outputs

to prevent ground loops.

Watlow EZ-ZONE

RML Module • 20 • Chapter 2 Install and Wire

Limit Module Wiring (RMLx-xxxx-xxxx)

Inputs 1 through 12 Thermocouple

Ther

mocouple

Slot A, B, D

• 2K Ω maximum source resistance

• >20 MΩ input impedance

• 3 microampere open-sensor detection

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

must be connected to S terminal

• To reduce errors, the extension wire for thermocouples must be of the

same alloy as the thermocouple.

Input 1 - 4 (top to bottom): RMLx-(5)xxx-xxxx

Input 5 - 8 (top to bottom): RMLx-x(5)xx-xxxx

Input 9 - 12 (top to bottom): RMLx-xx(5)x-xxxx

T+ / R+

Modbus

Common

T- / R-

Inter-module Bus

Common

• CC, CA, CB - Modbus and Standard Bus EIA485 Communi-

cations (selectable via push button under zone address)

• CZ, CX, CY - Inter-module Bus EIA485 Communications

• Do not route network wires with power wires. Connect net-

work wires in daisy-chain fashion when connecting multiple

devices in a network

RML Part # Digit 10 is 1

Communications

Standard Bus

Common

T- / R-

Inter-module Bus

Common

T+ / R+

• CF, CD, CE - Standard Bus EIA485 Communications

• CZ, CX, CY - Inter-module Bus EIA485 Communications

• Do not route network wires with power wires. Connect

network wires in daisy-chain fashion when connecting

multiple devices in a network

Communications

RML Part # Digit 10 is A

Low Power

• 20.4 to 30.8 V Å (ac) / Î (dc)

• 47 to 63 Hz

• Module maximum power consumption, 14 VA (ac), 7 VA

(dc)

• 31 Watts maximum power available for P/S part #:0847-

0299-0000

• 60 Watts maximum power available for P/S part #:0847-

0300-0000

• 91 Watts maximum power available for P/S part #:0847-

0301-0000

• Class 2 or SELV power source required to meet UL compli-

ance standards

RML- ALL Model Numbers

power

RML Part # Digits 5, 6, 7

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 126 127

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