Watlow EZ-ZONE
®
RMC 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 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 .
Note:
If the last two digits of the part number
are "12", this equipment is suitable for
use in CLASS I, DIVISION 2, Groups A,
B, C and D or Non-Hazardous 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 .
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 .
Input 1, 2, 3, 4 Potentiometer
RMC Part # Digits 4, 6, 8, 10
S_
R_
Slot A, B, D, E
CW
CCW
• Use a 1 kΩ potentiometer.
Input 1: RMC(1,3,5)xxxxxxxxxxx (S1/R1)
Input 2: RMCxx(1,5)xxxxxxxxx (S2/R2)
Input 3: RMCxxxx(1,5)xxxxxxx (S3/R3)
Input 4: RMCxxxxxx(1,5)xxxxx (S4/R4)
Input 1, 2, 3, 4 Current Transformer
RMC Part # Digits 4, 6, 8, 10
T_
S_
Slot A, B, D, E
• Input range is 0 to 50 mA (ac).
• Current transformer part number: 16-0246
• 100 Ω input impedance
• Response time: 1 second maximum
• Ac/-1 mA typical
Input 1: RMCx(7)xxxxxxxxxx (T1/S1)
Input 2: RMCxxx(7)xxxxxxxx (T2/S2)
Input 3: RMCxxxxx(7)xxxxxx (T3/S3)
Input 4: RMCxxxxxx(7)xxxxx (T4/S4)
Digital Inputs 7 through 12
RMC Part # Digit 11 is C
Common
DC Input
B7
D7
D8
D9
D10
D11
D12
Z7
Slot E
Internal Supply
DC Input
DC Input
DC Input
DC Input
DC Input
Digital Input Event Con-
ditions
• 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 E DIO 7-12
Voltage Input
Vdc
common
B
_
D
_
Dry Contact
24 Vdc
_
Z
_
D
