Installation manual
Technical description
13
4.2
Internal devices
Figure 5 - The SmartLevel motherboard
Main components
Note:
The relay contacts on the electronic are suitable for SELV circuitry only.
Figure 6 - Switching power supply
The switching power supply is attached to the backplate of the metal enclosure. The power supply type
depends on the station model.
[A]
LOOP
Loop connection terminals
[B]
FAULT
Voltage free fault relay contacts
[C]
MAINS
Voltage free mains fault relay contacts
[D]
OUTPUT
Output channel terminals (2 “+” terminals and 2 “-” terminals in parallel)
[E]
Power-supply module connectors
DO NOT USE
[F]
Front panel signaling LEDs
A
B
C
D
E
E
F
A
A
D
C
B
F
B
C
SPS24060S
power supply
SPS24160S
power supply
B
E
F
D
B
E