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9.1 Replacing XRC Parts
Replacement Procedure (Separated Type)
a) SK16MX, SK45X
• How to Replace Converter
1. Turn OFF the primary power supply and wait at least 5 minutes before replacing. Do
not touch any terminals during this period.
2. Verify that the converter CHARGE lamp (red LED) is unlit.
3. Disconnect all the cables connected externally to the converter.
#Main circuit power supply connector (CN7)
&Regenerative resistor connector (CN8)
%Servo control power supply connectors (1CN and 2CN)
+PN power supply terminals (P×1, N×1)
4. Remove the ground wiring connected to the converter.
5. Remove the four screws in the four corners of the converter.
6. With the top and bottom grips, pull out the converter.
7. Install the new converter and reconnect the connectors in the reverse order of that
listed above.
• How to Replace PWM Amplifier
1. Turn OFF the primary power supply and wait at least 5 minutes before replacing. Do
not touch any terminals during this period.
2. Verify that the converter CHARGE lamp (red LED) is unlit.
3. Disconnect all the cables connected externally to the control board.
#PG cable connectors (CNPB123, CNPB456)
&Communication cable connector (CN10)
%Power ON signal cable connector (CN20)
+Motor cable connectors (CN1 to CN6)
4. Remove the ground wiring connected to the PWM amplifier.
5. Remove the four screws in the four corners of the PWM amplifier.
6. With the top and bottom grips, pull out the PWM amplifier.
7. Install the new PWM amplifier and reconnect the connectors in the reverse order of
that listed above.
Ground Wiring
2 C N
Servo Control
Power Supply
1 C N
Converter
Top Grip
C N 2 0
R e d L E D
P
N
PN Wiring
Bottom
Grip
C N 8
C N 7
CN1 to CN3
Configuration of Servopack (SK16MX, SK45X)
9-6
PWM Amplifier
Top Grip
Ground Wiring
C N 1 0
C N P B 4 5 6
C N P B 1 2 3
Bottom
Grip
CN4 to CN6
Control Board
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