English – 17
4
4.2 - Electrical cable connections: Fig. 5
Table 4 - Description of the electrical connections (see Fig. 5)
Terminals Function Description
3-4 Flashing light Output for ashing light connection; when a manoeuvre is in progress, the ashing cycle is 0.5 s ON and
0.5 s OFF
5-6 Services 24 VDC output ( -30% + 50%) to power the services, maximum 200 mA
7-8 Courtesy light It comes on at the start of the operation and goes off 60 seconds after it nishes
7-9 S.C.A. It is OFF when the boom is closed and ON when a manoeuvre is stopped with the boom in any position; it
ashes slowly during opening and rapidly during closing
7-10 Stop Input of normally closed (NC) type for devices which control blocking actions or the immediate stoppage
of the manoeuvre in progress
7-11 Photo Input of normally closed (NC) type for safety devices that cause reverse movement or stoppage if they
intervene during a closing manoeuvre
7-12 Photo 2 Input of normally closed (NC) type for safety devices that cause reverse movement or stoppage if they
intervene during an opening manoeuvre
7-13 Step-by-step Input of normally open (NO) type for command devices whose intervention results in opening or closing
with the sequence Open - Stop - Close - Stop
7-14 Open Input of normally open (NO) type for command devices whose intervention results in an opening manoeuvre
with the sequence: Open - Stop - Open - Stop
7-15 Close Input of normally open (NO) type for command devices whose intervention results in a closing manoeuvre
with the sequence Close - Stop - Close - Stop
43-44 Aerial Radio receiver aerial input The aerial can be incorporated into the ashing light or mounted externally.
Note 1: as an alternative to terminal 7 (common for all inputs and outputs) you can use terminal 6
Note 2:
• If the contact inputs of type NC (Normally Closed) are not used, they must be jumpered to terminal 6 or 7.
• Contact inputs of type NO (Normally Open) must be left empty, if they are not used.
• The contacts of the devices connected to the control unit must be of the mechanical type and free from any potential; no connections are
allowed to devices whose contacts are dened as “open collector”, “PNP” or “NPN” types.
Other
connections
on the control
unit
- Power supply transformer Connection to the secondary winding of the transformer
- Motor output for connection to motor
- Limit switch input for connections to opening and closing limit switches
- Radio (for accessories) connection for radio receivers with SM connector (OXI, etc.)
- Battery (for accessories) connection for PS324 battery
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