PEDROLLO STEADYPRES Manual página 30

CONNECTION OF ELECTRIC SIGNALS (optional)
1
Only for STEADYPRES equipped with an expansion board.
For installation of the expansion board, see the chapter on INSTALLING THE EXPANSION BOARD.
DESCRIPTION OF TERMINAL FUNCTIONS
1-2 If bridged, STEADYPRES becomes SLAVE
RS 485 (inverter parallel / communication with outside)
3-4 3 = RS 485 -
4 = RS 485 +
OUTPUT relay towards outside
5-6 5 = NO (normally open) contact
6 = C (common) contact
INPUT relay from outside
7-8
If opened, it inhibits operation of the STEADYPRES (normally bridged, default setting)
FUNCTIONALITY
CONNECTION OF THE SIGNAL BETWEEN THE INVERTERS (RS485)
Connect together:
– the terminals 3 of the various inverters (RS 485 –)
– the terminals 4 of the various inverters (RS 485 +)
CONNECTION OF THE ALARM SIGNAL - OUTPUT outwards
(in the applications with the inverter parallel, the wiring must be carried out with the MASTER inverter)
Logic NO (normally open)
Connect the signal cable to the terminals 5 and 6
The maximum connectable load is 0.5 A at 250 Vac
CONNECTION OF LEVEL SIGNAL (or another input signal) - INPUT from outside
Connect the signal cable to the terminals 7 and 8 (clean contact)
In the applications with the inverter parallel, the wiring must be carried out with the MASTER inverter
28 | ENGLISH
8 7 6 5 4 3 2 1
8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1
MASTER SLAVE