ABB SM500F - Page 9

CI/SM500F–EN Rev. A 9
Connections
Fig. 7 Electrical connections
A
B
C
DE
F
F
G
ABCD BCD DEG
D
1 2 3 4
1/3 2/4
1/3 2/4
1 4
3 4
2 3 4
1 2 3 4
1 2 3 4 1 2 3 4 1 2
1 2 3
1 2 3 4 1 2 3 4 1 2 3 4
1 2 3 4
1 2
1 2 3
AB C D E G
Ethernet / Modbus
and digital input
Rx/Tx +
Rx/Tx –
Gnd
Dig IP/1
Dig IP/2
Dig
Com
Single input
Dual input
24 V Tx PSu
Relay
Power
Supply
THC / mV / V
digital input
Current
R/RTD 3
RTD 4
Current
I/P 1
I/P 2
Dual relay
Relay 1
Relay 2
Relay 1
Relay 2
NO
NC
LK2
Relay
NO
NC
LK1
CNO/NC
10 to 36 V DC
or
100 to 240 V AC
*In the powered-down condition the current input is open circuit. In order to maintain a current loop when the
recorder is powered down, fit a zener diode (BZX79 – B/C2V4) to the input as shown.
THC / mV / V
digital input
CNO/NC
C NO/NC
NC
LK1
IMPORTANT (NOTE) Tighten power supply terminal
screws to a torque of 0.8 Nm (7 lbf.in). Tighten all other
terminal screws to a torque of 0.5 Nm (4.5 lbf.in).