Digital outputs 1 - 6, Process inputs 1 through 12 – Watlow EZ-ZONE RM Limit Module Rev C User Manual

Page 25

Warning:

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 mm2 (30 to 12 AWG)
single-wire termination or two 1.31
mm2 (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

•

Chapter 2 Install and Wire

Open Collector/Switched DC

Outputs

Internal Circuitry

Common

open collector/switched dc

B1
D1
D2
D3
D4
D5
D6
Z7

Slot D

Supply

open collector/switched dc

Internal

Suppressor Note:
Switching pilot duty inductive loads (re-
lay coils, solenoids, etc .) with the me-
chanical relay, solid state relay or open
collector output options requires use of
an R .C . suppressor

Digital Outputs 1 - 6

RML Part # Digit 7 is C

• Maximum switched voltage is

32VÎ (dc)

• Internal supply provides a

constant power output of

750mW

• Maximum output sink cur-

rent per output is 1.5A (ex-

ternal class 2 or *SELV sup-

ply required)

• Total sink current for all out-

puts not to exceed 8A

• Do not connect outputs in

parallel

- Slot D DO 1 - 6
RMLx-xx(C)x-xxxx

*Saftey Extra Low Voltage

Process Inputs 1 through 12

RML Part # Digit 5, 6, 7 is 5

S_
R_
S_
R_
S_
R_
S_
R_

Slot A, B, D

S_
R_
S_
R_
S_
R_
S_
R_

Slot A, B, D

• 0 to 20 mA @ 100 Ω input impedance
• 0 to 10V

(dc) @ 20 kΩ input imped-

ance

• 0 to 50 mV

(dc) @ 20 MΩ input im-

pedance

• scalable

Slot 1:

RMLx-(5)xxx-xxxx

(Inputs 1 to 4)

Slot 2:

RMLx-x(5)xx-xxxx

(Inputs 5 to 8)

Slot 3:

RMLx-xx(5)x-xxxx

(Inputs 9 to 12)