Transmitter Power Supply Module; Relays - ABB SM500F User Manual

Field Mountable Videographic Recorder
SM500F
2.6 Transmitter Power Supply Module – Fig. 2.11
One transmitter power supply module can be fitted in position D to provide a nominal 24V supply capable
of driving two, 2-wire transmitters.
Fig. 2.11 Transmitter Power Supply Module
Note. Analog input terminal screws must be tightened to a torque of 0.5 Nm (4.5 lbf.in).

2.7 Relays

One relay is provided as standard (position E). An additional relay module can be fitted in position D to
provide two additional relays.
The maximum individual relay current is 5A.
Relay contacts are fitted with arc suppression components as standard.
Set the polarity using the relay links provided on the instrument's motherboard (for the standard relay) and
the relay module board (for the optional additional relays) – see Fig. 2.8 on page 15.
18
2-wire Transmitter Power Supply
(24V DC, 22mA max.)
– –
+
Tx
–
Analog Input
1 2 3 4
2 Installation
IM/SM500F Issue 10.1