Watlow EZ-ZONE RM Limit Module Rev C Manuel d'utilisateur télécharger pdf (Page 24)

Watlow EZ-ZONE

®

RML Module • 21 • Chapter 2 Install and Wire

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

2

(30 to 12 AWG)

single-wire termination or two 1.31

mm

2

(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.

Inputs 1 through 12 Thermistor

• >20 MΩ input impedance

Input 1 - 4 (top to bottom): RMLx-(6)xxx-xxxx

Input 5 - 8 (top to bottom): RMLx-x(6)xx-xxxx

Input 9 - 12 (top to bottom): RMLx-xx(6)x-xxxx

Thermistor

S_

R_

S_

R_

S_

R_

S_

R_

Slot A, B, D

RML Part # Digits 5, 6, 7

Inputs 1 through 12 RTD

2-wire

RTD

S_

R_

S_

R_

S_

R_

S_

R_

Slot A, B, D

• platinum, 100 and 1,000 Ω @ 0°C

• calibration to DIN curve (0.00385 Ω/Ω/°C)

• 20 Ω total lead resistance

• RTD excitation current of 0.09 mA typical.

Each ohm of lead resistance may affect the

reading by 2.55°C.

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

RML Part # Digits 5, 6, 7

Common

DC Input

B1

D1

D2

D3

D4

D5

D6

Z1

Slot D

Supply

DC Input

DC Input

DC Input

DC Input

DC Input

Int

ernal

Digital Input Event Condi-

tions

• Dry Contact

- Input inactive when >

100KΩ

- Input active when < 50Ω

• Voltage

- Input inactive when < 2V

- Input active when > 3V

• Six user configurable digital

inputs/outputs per slot

- Slot D DI 1 - 6 RMLx-x(C)

xx-xxxx

- Slot E DI 9 RMLx-xxx(B)-

xxxx

Note:

When using a dry contact

with Digital Input 9 (Slot E),

notice that the connection is

made between pins B9 and

D9.

RML Part # Digit 7, 8 is C and or B Respectively

Digital Inputs 1 through 6 and 9

Common

DC Input

B9

D9

Slot E

B

common

Vdc

D

_

_

D

_

24 Vdc

_

Z

Voltage Input

AWG Ohms/1000ft

14 2.575

16 4.094

18 6.510

20 10.35

22 16.46

24 26.17

26 41.62

28 66.17

D

_

24 Vdc

_

B

Dry Contact

Slot E

Slot D

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 126 127

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