5
4.3 INPUT WIRING
CAUTION
: Power input common is NOT isolated from user and input
commons. In order to preserve the safety of the meter application, the
power input common must be suitably isolated from hazardous live
earth referenced voltage; or input common must be at protective earth
ground potential. If not, hazardous voltage may be present at the signal
or user inputs and input common terminals. Appropriate considerations must then
be given to the potential of the user and input commons with respect to earth
ground; and the common of the plug-in cards with respect to input common.
Before connecting signal wires, the Input Range Jumper should be verified for
proper position.
4.4 SETPOINT (OUTPUT) WIRING
COM
N.C.
N.O.
SINGLE SETPOINT RELAY PLUG-IN CARD
Input Signal (self powered)
Series Loop (must use separate supply for sensor power
and each FLEX MINI)
2 Wire With External Power
2 Wire With RFMPS Power
2 Wire With Separate Sensor And FLEX MINI Power
-
+
COMM
INP+
2 WIRE TRANSMITTER
INP
+
COMM
EXTERNAL POWER
COMM
+VDC
+
_
MODEL
INPUT POWER:
OUTPUT POWER:
85-250 VAC, 50/60Hz, 14VA
OPERATING TEMP: 0° TO 60°C
12VDC UNREG.
@ 400mA
+12V
DC COMMON
M3424B
TERMINAL
AC INPUT
MLPS1
!
2 WIRE TRANSMITTER
COMM
INP
+
_
+
MODEL
INPUT POWER:
OUTPUT POWER:
85-250 VAC, 50/60Hz, 14VA
OPERATING TEMP: 0° TO 60°C
12VDC UNREG.
@ 400mA
+12V
DC COMMON
M3424B
TERMINAL
AC INPUT
MLPS1
!
2 WIRE TRANSMITTER
INP
+
COMM
EXTERNAL POWER
COMM
COMM
+VDC
+VDC
_
+
COMM
INP
+
MODEL
INPUT POWER:
OUTPUT POWER:
85-250 VAC, 50/60Hz, 14VA
OPERATING TEMP: 0° TO 60°C
12VDC UNREG.
@ 400mA
+12V
DC COMMON
M3424B
TERMINAL
AC INPUT
MLPS1
!
COMM
INP
+
+VDC
COMM
EXTERNAL POWER
2 WIRE TRANSMITTER
+
_
MODEL
INPUT POWER:
OUTPUT POWER:
85-250 VAC, 50/60Hz, 14VA
OPERATING TEMP: 0° TO 60°C
12VDC UNREG.
@ 400mA
+12V
DC COMMON
M3424B
TERMINAL
AC INPUT
MLPS1
!
COM
N.O.
N.C.
ELECTRICAL CONNECTIONS
DUAL SETPOINT N-FET OPEN DRAIN PLUG-IN CARD
OSNK1
OSNK2
COM
ELECTRICAL CONNECTIONS
Output Common is not isolated from DC Power Common. Load
must be wired between OSNK terminal and V+ of the load supply.
30 VDC
150 mA
10 VDC
20/50 mA DC
MAX SIGNAL
INPUT
JUMPER
POSITION
COM
OSNK 1(2)
(30 V MAX.)
4.5 SERIAL COMMUNICATION WIRING
N/
C
RS485
2
COMM
A+
B-
N/
C
5
3
4
N/
C
RS232
5
N/
C
TX
N/
C
4 3
COMM
COMM
2
RX
6
1
6
1
4.6 USB PROGRAMMING
USB PROGRAMING PLUG-IN CARD
SERIAL COMMUNICATIONS PLUG-IN CARD
RJ11 CONNECTOR PIN OUTS
20/50 mA DC
JUMPER
POSITION
20/50 mA DC
JUMPER
POSITION
20/50 mA DC
JUMPER
POSITION
20/50 mA DC
JUMPER
POSITION