Fagor ACSD series, Original Instructions Manual

Page: 27 / 82

Digital Brushless AC S ervo D rive system - Ref.1609 ACSD-27/80
Connectors
Power terminals
POWER INPUTS L1, L2, L3. Mains input terminals.
POWER OUTPUTS U, V, W. Output terminals for the voltage
applied to the motor. Current control with PWM on a carrier fre-
quency of 8 kHz. When connecting to the motor, watch the matching
of phases U-U, V-V and W-W.
L+, Ri, Re. Terminals to configure and connect the external ballast
resistor.
CONTROL POWER INPUTS L1, L2, GROUND (X3). Input termi-
nals for the voltage supply of the drive's control circuits from mains.
The maximum cable section at these power terminals is
2.5 mm² .
Total isolation between the power and the control circuits.
ACTIVATION OF THE INTERNAL FAN. The internal fan that
cools the drive's power elements starts when enabling the
Drive_Enable signal. The fan will stop when the heatsink tempera-
ture is lower than 70 ºC since the Drive_Enable signal is turned
off. This method decreases the fan's operating time, hence
increasing its useful life.
Control signals
20 mA OUT
Voltage ± 12 V, (pins 1, 2, 3 of X1).
Output of an internal power
supply so the user can easily generate a device enabling signal.
PROG. DIGIT. OUTPUT
Programmable digital output (pins 1 and 2 of X2).
Opto-coupled
open collector output. Max. current (100 mA), max. voltage (50 V).
ENABLES
Common, (pin 5 of X2).
Reference point for the following:
Drive Enable, (pin 4 of X2). No current can flow through the motor
winding at 0 V DC, i.e. without torque.
Speed Enable, (pin 3 of X2). At 0 V DC, it forces an internal zero
velocity command.
NOTE. These control signals are activated with + 24 V DC.