Panasonic A4P Series Power Supply User Manual


 
28
System Configuration and Wiring
Circuit Breaker (NFB)
Use the circuit breaker matching capacity
of the power source to protect the power
lines.
Noise Filter (NF)
Prevents external noise from the power
lines. And reduces an effect of the noise
generated by the servo driver. 
Magnetic Contactor (MC)
Turns on/off the main power of the servo
driver.
Use a surge absorber together with this.
• Never start nor stop the servo motor
with this Magnetic Contactor. 
Reactor (L)
Reduces harmonic current of the main
power.
(see P.32, 33 and 177.)
(see P.177 , 178.)
(see P.32, 33.)
(see P.189.)
• Wiring of the Main Circuit
(see P.34, 35.)
• Connection to 
the Connector, CN X1
(connection to input power)
<Remarks>
Before turning the power 
supply on, check whether 
the input voltage is correct.
RB1 (Pin-6)
RB2 (Pin-4)
L1 (Pin-5)
L2 (Pin-4)
L3 (Pin-3)
L1C (Pin-2)
L2C (Pin-1)
• Connection to the Connector, CN X2
(connection to external components)
Handle lever
Use this for connector
connection. Store this after
connection for other occasions. 
(see page for connection.)
Pin RB1 (6-pin), RB2 (4-pin), and
RB3 (5-pin)
RB2 and RB3 to be kept shorted for
normal operation. 
When the capacity shortage of
the regenerative resister is found,
disconnect a shorting bar be-
tween RB2 and RB3, then connect
the external regenerative resister
between RB1 and RB2. 
(Note that no regenerative resister
is equipped in Frame A and B type.
Install an external regenerative
resister on incombustible materi-
al, such as metal. Follow the same
wiring connection as the above.)
• When you connect an external re-
generative resister, set up SV.Pr6C
to 1 or 2.
Regenerative resistor (optional)
<Remarks>
• When you use an external regenerative resister, install
an external protective apparatus, such as thermal fuse
without fail.
• Thermal fuse and thermostat are built in to the
regenerative resistor (Option). If the thermal fuse is
activated, it will not resume.
Overall Wiring (Connecting Example of C-frame, 3-phase)