Watlow EZ-ZONE RME - Manual (Page 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
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.
Watlow EZ-ZONE ® RME Module • 20 • Chapter 2 Install and Wire
Expansion Module Wiring (RMEx-xxxx-xxxx)
Warning:
ç
Explosion Hazard - Dry contact closure
Digital Inputs shall not be used in Class
I Division 2 Hazardous Locations unless
switch used is approved for this ap-
plication .
Low Power
RME - All Model Numbers
98 99
Slot C
power
• 20.4 to 30.8 V Å (ac) / Î (dc) 14VA
• 47 to 63 Hz
• Expansion module power consumption, 7 Watts maximum
• 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 compliance
standards
Communications
Slot C
Standard Bu
s
Commo
n
T- / R- Inter-module Bu
s
Commo
n
- +
T+ / R+
CF CD CE CZ CX CY
• CF, CD, CE - Standard Bus EIA485 Communications
• 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
Quad Current Transformer Inputs 13, 14, 15 and 16
RME Part # Digit 8 is T
T13
S13
Slot E
T14
S14
T15
S15
T16
S16
• Input range is 0 to 50 mA (ac).
• Current transformer part number: 16-
0246
• 100 Ω input impedance
• Response time: 1 second maximum
• Accuracy +/-1 mA typical