Watlow EZ-ZONE RM-Scanner-Modul - Manual (Page 29)

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.
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 ® RMS Module • 26 • Chapter 2 Install and Wire
Digital Outputs 1 - 12
RMS Part # Digit 7, 8 is C
Internal
Common
open collector/switched dc
B_
D_
D_
D_
D_
D_
D_
Z_
Slot D, E
Supply
open collector/switched dc
open collector/switched dc
open collector/switched dc
open collector/switched dc
open collector/switched dc
• Maximum switched volt-
age is 32VÎ (dc)
• Internal supply provides
a constant power out-
put of 750mW
• Maximum output sink
current per output is
1.5A (external class 2 or
*SELV supply required)
• Total sink current for all
outputs not to exceed 8A
• Do not connect outputs in
parallel
- Slot D DO 1 - 6
RMSx-xx(C)x-xxxx
- Slot E DO 7 - 12
RMSx-xxx(C)-xxxx
*Safety Extra Low Voltage
Open Collector/Switched
DC Outputs
B_
Z_
D_
D_
D_
D_
D_
D_
Switched DC Wiring Example Using DO 1-12
VDC
Collector Outputs
Internal Circuitry
Common
Internal Supply
+
+
+
-
-
-
DC90-60C0-0000
Htr 3
Htr 2
Htr 1
B_
D_
Z_
D_
D_
D_
D_
D_
Note:
As a switched DC output; this output is a constant current output deliver-
ing 750 mW, current limited to 400 mA. The internal supply does have a
maximum open circuit voltage of 22 VDC and minimum open circuit volt-
age of 19 VDC. Pin Z_ is shared to all digital outputs. This type of output is
meant to drive solid-state relays, not mechanical relays.
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 .