GSK DA98A - Page 29

DA98A AC Servo Drive Unit User Manual
4.7
K
12~24V
SW
COM+
Fig. 3.4 Type 1 Input interface of switching volume
（1） Power suppy is provided by user，DC12～24V，current≥100mA；
（2） Note If current polarity is connected reversely, the drive unit will not run.
19
2） Output interface of switching volume
servo amplifier
max 25V
max 50mA
Fig. 3.5 Type 2 Output interface of switching volume
（1） External power supply is provided by user; if its polarity is connected reversely, the
drive unit will be damaged.
（2） The output is by collector open circuit, and its max. current is 50mA, external max.
power supply voltage is 25V. So the load of switching volume output signal must
conform to these restrictions. If the load exceeds them or the output is connected
directly with power supply, the servo drive unit may be damaged.
（3） If the load is an inductive one such as relay, the both terminals of load must be
connected with freewheeling diode in parallel reversely. If the freewheeling diode is
connected reversely, the servo drive unit may also be damaged.
3） Pulse volume input interface
Fig. 3.6 Type 3 Differential drive mode of pulse volume input interface
220
220
Servo amplifier
PULS+
PULS-
SIGN+
A
C
se
rv
o
d
riv
e
u
ni
t
s
i
de
AC servo drive unit side
AC servo drive unit side
SIGN-