Tri-process/retransmit outputs 1-3, 7-9, L_ k_ l_ l_ k_ l, Watlow ez-zone – Watlow EZ-ZONE RMH User Manual

Page 32: Rmh module, Chapter 2 install and wire, Rmh part # digit 7, 8 is l, Rmh part # digit 7, 8 is f

Watlow EZ-ZONE

RMH Module

•

Chapter 2 Install and Wire

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.

Warning:

Explosion Hazard – Substitution of
component may impair suitability for
CLASS I, DIVISION 2.

Warning:

Explosion Hazard - Do not disconnect
while the circuit is live or unless the
area is known to be free of ignitable
concentrations of flammable sub-
stances.

Suppressor Note:
Switching pilot duty inductive loads
(relay coils, solenoids, etc .) with the
mechanical relay, solid state relay or
open collector output options requires
use of an R .C . suppressor for AC load or
a diode for a DC load .

Quad 2A SSR Outputs 1-4, 7-10

RMH Part # Digit 7, 8 is L

normally open

common

Slot D, E

normally open

common

normally open

• 2 A at 20 to 264VÅ (ac)

maximum resistive load

• 50 VA 120/240VÅ (ac) pilot

duty

• Optical isolation, without

contact suppression

• maximum off state leak-

age of 105 microamperes

• Output does not supply

power.

• Do not use on dc loads.
• N.O., COM, N.O wiring

(shared common) between

each set of outputs.

• See Quencharc note.

Normally Open

Common

Normally Open

Common

Not Used

Quad 2 Amp SSR Derating Curve

All Outputs 100% Duty Cycle

Amps per Output

Ambient Temperature (

-20

-5

-10

-15

0.25

0.50

2.25

0.75

1.0

1.25

1.50

1.75

2.00

1 Quad SSR

Multiple Quad SSR Cards

Note:

Each of the four SSR outputs has internal circuitry that will protect it from over

heating. Outputs may be disabled (shut off) automatically if internal temperatures

exceed those listed in the graph above. After the output temperature drops approxi-
mately 10 °C the outputs will once again be enabled for operation.

Tri-Process/Retransmit Outputs 1-3, 7-9

RMH Part # Digit 7, 8 is F

volts or current -

volts +/current +

Slot A, B, D, E

volts or current -

volts +/current +

volts or current -

volts +/current +

• 0 to 20 mA into 400Ω

maximum load

• 0 to 10VÎ (dc) into 4

kΩ minimum load

• Outputs are scalable
• Output supplies pow-

• Each output can be

independently set for

voltage or current.

• Output may be used

as retransmit or con-

trol.

negative

volts +
or
current +

0 to 10 V

0 to 20 mA

Not Used

volts +
or
current +

negative

0 to 20 mA