Connections - ABB SM500F User Manual

Field Mountable Videographic Recorder
SM500F
2.3.2 Connections – Fig. 2.8
F
Ethernet
THC/mV/V
Digital Input
—
1 4
A
B
Current
—
C
*
D
Analog/ 3 4
Digital
R/RTD 3
Input
2 3 4
R/RTD 4
1 2 3 4
1 2 3 4
A
* In the powered-down condition the current input is open circuit. In order to maintain a current loop
when the unit is powered down, fit a zener diode (BZX79 — B/C2V4) to the input as shown.
Fig. 2.8 Electrical Connections
Note. Power supply terminal screws must be tightened to a torque of 0.8 Nm (7 lbf.in). All other terminal
screws must be tightened to a torque of 0.5 Nm (4.5 lbf.in).
IM/SM500F Issue 10.1
D D
24V Dual
Tx PSU Relay
— —
1 2 3 4 1
B
NO
LK1 LK2
Relay 1 Relay 2
NC
Relay 1
C NO/NC
Relay 2
C NO/NC
1 2 3 4
2 3 4 1 2
C D
NO
LK1
NC
G
E
Power
Relay
Supply
10 to 36V DC or
Relay
C NO/NC
1 2
1 2
3 4 1 2
E G
2 Installation
85 to 265V AC
—
1 2 3
3
15