17
4.4 Electrical connection, internal
4.5 Example of connecting power supplies
4. Installation
*) Note!
- Terminals 24, 25, 26 and 27 can be used for external seat-lift sensors as well as for any digital input. Always use an external
PNP sensor.
- Two external signals can be connected, they are associated with feedback signal 3 (seat-lift 1) and 4 (seat-lift 2). External
sensor must always be a 8-30 VDC PNP 3 wire sensor. Connect (-) common on terminal 27, and (+) common on terminal
26. The signals from the external sensors are associated as follows: sensor signal on terminal 24 (seat-lift 1) associated
with feedback 3 (seat-lift 1), and sensor signal on terminal 25 (seat-lift 2) associated with feedback 4 (seat-lift 2).
**) Note!
Jumper present = PNP. If changing the function a power recycle is necessary. The selection NPN/PNP is done by the jumper.
Note! Remember to isolate wires that are not in use.
One power supply for sensor system and solenoid valves:
+
24 VDC
-
9
10
11
- Jumper (if positive
activation of solenoids)
+
24 VDC
-
9
10
11
- Jumper (if negative
activation of solenoids)
Two power supplies, one for sensor system and one for the solenoid valves:
+
8-30 VDC
-
9
10
~/-
24 VDC
24 VAC
110 VAC
~/+
11
11
-/~ If positive activation of solenoids.
+/~If negative activation of solenoids.
Sensor system
Solenoid valves
Internal connections
to solenoid 1-3
Incoming signals from
external sensors
Jumper
connections **)
Supply to external
sensors
Solenoid 1
Solenoid 2
Solenoid 3
Supply +
Supply -
Solenoid common
Earth
Solenoid common blue
Solenoid 1, brown
Solenoid 2, brown
Solenoid 3, brown
Closed valve
Open valve
Seat-lift 1
Seat-lift 2
Status
NPN/PNP Jumper
NPN/PNP Jumper
Seat lift 1 *) "upper"
Seat lift 2 *) "lower"
Supply + *)
Supply - *)
Digitale interface
command signals
Feedback signals to
digital interface
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