Watlow EZ-ZONE RME - Manual (Page 26)

Watlow EZ-ZONE ® RME Module • 23 • 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 la-
beled differently, depending on
the model number.
Note:
To prevent damage to the con-
troller, do not connect wires to
unused terminals.
Note:
Maintain electrical isolation
between digital input-outputs,
switched dc/open collector out-
puts and process outputs to
prevent ground loops.
Note:
If the last two digits of the part
number are "12", this equip-
ment is suitable for use in
CLASS I, DIVISION 2, Groups
A, B, C and D or Non-Hazard-
ous locations only. Temperature
Code T4
Warning:
ç
Explosion Hazard – Substitution of
component may impair suitability for
CLASS I, DIVISION 2.
Warning:
ç
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.
Quencharc Wiring Example
In this example the
Quencharc circuit (Watlow
part# 0804-0147-0000) is
used to protect the RME
internal circuitry from the
counter electromagnetic force
from the inductive user load
when de-engergized. It is
recommended that this or an
equivalent Quencharc be used
when connecting inductive
loads to the RME outputs.
Quencharc
User Load
L_
K_
N
Dual 10A SSR Outputs 1-4
RME Part # Digit 5 or 7 is K
normally open
common
L1
L1
K1
K1
L2
L2
K2
K2
Slot A
normally open
common
normally open
common
normally open
common
• Maximum resistive load 10
A per output @ 240V (ac)
• Maximum 20 A per slot @
50 0 C
• Maximum 12 A per slot @
65 0 C
Normally Open
Normally Open
Common
Common
L_
L_
L_
L_
K_
K_
K_
K_
normally open
common
L13
L13
K13
K13
L14
L14
K14
K14
Slot D
normally open
common
normally open
common
normally open
common
Total Output Amps Per Slot
15
10
5
0
20 55 50 45 40 35 30 25 60 65
Output Amps
Ambient Temperatue ( o C)
20
12 A
70
25