Installation
Instruction manual 91/121 V6.3
The 24Vcc power supply can be supplied by the drive itself (if the total current absorbed by the loads connected to the outputs does
not exceed 100mA): connect D24 with clamp +24V (X9) and D0V with A0V clamp (X12).
If the internal power supply cannot be used, an external power supply must be used.
4.4.8 Connector X10
Power connection auxiliary services 230Vac 500mA (Max). Mount protective fuses with 1 amperes retarded. The power supply of the
services MUST be present before the
line
supply
and must not be removed before the line supply.
4.4.9 Connector X11
Connection reference voltages and analog inputs.
Always use good quality shielded cables and connect the two ends of the screen to the ground. On the drive case, near the connectors,
anchorages are available for screens (see Mechanical characteristics page 78).
Signal allocation to PINs:
1
+24V
24Vcc
±20 % – 100mA max.
2
+10V
10Vcc
±5 % – 5mA max.
3
-10V
Output -10Vcc
±5 % – 5mA max.
4
AI1+
Main analog input hot pole 1 (resolution 15 bit + sign) programmable which is normally used for speed reference.
Tensions between: AI1+ and A0V, AI1- and A0V, AI1+ and AI1- = ±10V max. 10KΩ input resistance.
5
AI1-
Cold pole of the analog input 1.
6
A0V
0V analog. The analog 0V is connected to the drive case.
7
AI2
Analog input 2 (resolution 11 bit + sign) programmable. Voltage between AI2 and A0V = ±10Vcc max.
8
AI3
Analog input 3 (resolution 11 bit + sign) programmable. Voltage between AI3 and A0V = ±10Vcc max.
9
AI4
Analog input 4 (resolution 11 bit + sign) programmable. Voltage between AI4 and A0V = ±10Vcc max.
10
A0V
0V analog.
To connect analog I/Os to other electronic equipment (CNC, PLC, etc.), it is essential to use good quality shielded cables and connect
the ends of the screen to reduce noise.
Below are some sample drawings for a correct use of the various signals on X11.
Drawing 8
Connection of a
potentiometer
to provide the
speed reference.
Drawing 9
Connection of a numerical control (or a PLC)
with an
unbalanced output
to provide the speed
reference.
18
Alter Elettronica s.r.l.
