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4.9
Servo Drive / Power supply Unit
In this section, the connections from CNC to servo drive/power supply units are
described. See respective servo connection manuals for details.
4.9.1
AP28A Servo Drive Unit
4.9.1.1
+24 VDC Input & Servo Contactor External Control Input (CN24V)
AP28 servo drive unit requires +24 VDC power. Power supply module T9PW2 in
the Main Control Unit provides the+24 VDC power for AP28.
Also the servo contactor external control input (MCA, MCB) are in CN24V connector.
When the MCA(pin 3) and MCB(pin4) are opened, the servo system enters the
emergency stop state and the servo contactor is off.
Main Control Unit
POWER-Module
T9PW2
P24V
P24G(GND)
Notes:
1)
See section 8 for using emergency stop signals effectively.
2)
When the servo contactor external control input (P24V, PONIH) is not used,
connect between pin 3 and pin 4 of the CN24V by the wiring.
3)
See section 4.2.5 for T9PW2-CNPW1.
CNPW1
–1
–3
Fig. 4.9.1
AP28A
CN24V
–A4
–B4
– 91 –
CN24V
–1
–2
–3
–4
P24V - PONIH:
Servo Contactor External Control Input
Fig. 4.9.2
AP28
P24V
P24G(GND)
P24V
PONIH
STE 73843
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