1. Home
  2. Electric Systems
  3. Pitagora 4.0
  4. Pitagora 4.0 – Multiplex solutions

Pitagora 4.0 – Multiplex solutions


The Pitagora 4.0 control panel can manage multiplex systems up to 6 lifts.
The solution requires the use of a Q40.MULX electronic board mounted on the DIN rail of each control panel of the multiplex system. Each Q40.MULX multiplex board is equipped with two connectors (PREV / NEXT) and an ethernet cable for connection to the multiplex boards of the previous and next control panel.

Each controller Pitagora 4.0 must be connected by a specific cable (A) to the closest BDU.
It is also recommended to connect the BDUs on the same floor by means of a 5-pole JST cable (B); in this way, in the event of a blackout of one of the Controllers, the button and the beep device will continue to operate calling one of the other lifts still in operation.

Below are some specific examples of duplex configurations.

Duplex elevator
Example 1

Floors in MultiplexController A floorsController B floors
777
666
555
444
333
222
111
000

Controller AController B
Number of floors88
...
Multiplex configuration
Lift number1.X2.X
Floors in Multiplex88
OFFSET00

NOTE : please refer to examples 5 and 6 for the configuration of the button wiring indicated with X
Duplex “Dog Leg”elevator
Example 2

Floors in MultiplexController A floorsController B floors
775
664
553
442
331
220
11
00

Controller AController B
Number of floors86
...
Multiplex configuration
Lift number1.X2.X
Floors in Multiplex88
OFFSET02

NOTE : please refer to examples 5 and 6 for the configuration of the button wiring indicated with X

– Example 3 –

Floors in MultiplexController A floorsController B floors
77
66
55
444
333
222
111
000

Controller AController B
Number of floors85
...
Multiplex configuration
Lift number1.X2.X
Floors in Multiplex88
OFFSET00

NOTE : please refer to examples 5 and 6 for the configuration of the button wiring indicated with X

Example 4

Floors in MultiplexController A floorsController B floors
75
64
553
442
331
220
11
00

Controller AController B
Number of floors66
...
Multiplex configuration
Lift number1.X2.X
Floors in Multiplex88
OFFSET02

NOTE : please refer to examples 5 and 6 for the configuration of the button wiring indicated with X
Shared button wiring
Example 5

Controller APush-buttonsController B
77
66
55
44
33
22
11
00

Controller AController B
Number of floors88
...
Multiplex configuration
Lift number1.02.0
Floors in Multiplex88
OFFSET00

NOTE : each button must be connected to all controllers
Independent button wiring
Example 6

Controller APush-buttonsPush-buttonsController B
77
66
55
44
33
22
11
00

Controller AController B
Number of floors86
...
Multiplex configuration
Lift number1.02.1
Floors in Multiplex88
OFFSET00

NOTE : each button is only connected to its controller and must NOT be connected in parallel
Multiplex call
Example 7

Controller A floorsController B floors
77
66
55
44
33
22
11
00

If this function is activated, two types of call are possible:
a) standard pressure call (the call is assigned to the nearest elevator);
b) long pressure call (more than 3 seconds of pressure); this call is assigned to the elevator with  lower “Lift Number” (MASTER); use this function if you have two elevator cars of different sizes (i.e. one for disabled passengers and one standard) and the call must go to the bigger elevator car.


Example 8

Controller A floorsController B floors
5
4
53
42
31
20
1
0

If this function is activated, two types of call are possible:
a) standard pressure call (the call is assigned to the nearest elevator);
b) long pressure call (more than 3 seconds of pressure); this call is assigned to the elevator which can reach the highest floor (UP call) or the lowest (DOWN call). The example shows a long pressure call always being assigned to controller A, whereas a long pressure UP call will always be assigned to controller B.

Fusion App (work in progress)

Updated on 2 Marzo 2022

Was this article helpful?

Related Articles