DUPLOMATIC
E.M.6427 RELEASE 7.1 05-03
6427071-230-en 5
2. ELECTRICAL CONNECTIONS
Refer to the annex diagrams:
1. : wiring diagram for standard turrets.
2. : cables
3. :
timings
4. : instructions for RS-232 serial cable
SUPPLY
POWER SUPPLY 230 VAC 3
Φ
(see tab1)
The control unit requires a three-phase 230 VAC input for the power card.
A power contactor on the 230 AC line must be used for emergency stop (see wiring diagram).
The 230 VAC line must be protected with external fuses 10 A T.(or 4-6.3 A motor start)
An inrush current can happen at power-on due to the internal 300uF power capacitors.
An external filter is required to meet E.M.C. compliance (optional).
POWER SUPPLY 230 VAC 2
Φ
(see tab1)
The control unit requires a single-phase 230 VAC input for the logic card.
A 500mA T
F2
fuse must be used to protect this supply.
POWER SUPPLY 24VDC FOR I/O
(see tab 2)
On the control unit are present two different conne24VDC.
The
+24VDC
on terminal
P10-2
is used to supply the electrovalve and must be protected with a
500 mA T fuse
(F5)
.
The
+24VDC
on terminal
P10-6
is used to supply the signals outputs and must be protected with
a 500mA FF fuse
(F4).
0VDC
is connected at terminal
P10-24
.
Note: during turret start-up, use P10-1 and P10-7 connections for 24V DC. In this way the fuses
inside the connection box are used and can protect the unit against mistakes on wirings. After the
positive test switch to P10-2 and P10-6 and use the fuses in the cabinet that are more reachable.
TECHNICAL SPECIFICATIONS FOR POWER TRANSFORMER DESIGN
Important:
check the voltage drop on the 230 VAC supply during acceleration, to be sure that this
doesn’t approach the indicated voltage limits.
Rated primary voltage
Variable
Secondary rated voltage
230 VCA ± 10% 3
Φ
Rated Power
1000 VA
Max voltage drop at 20 A rms (during
acceleration)
5%
Connection
star-star or delta-star
Secondary voltage deviation
± 2%
tab 4
