Hypertherm Powermax45 XP, Field Service Bulletin

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INTERFACE CABLE REPLACEMENT
Field Service Bulletin 3
Set the voltage divider on the Powermax65/85, Powermax65/85/105 SYNC
WARNING
ELECTRIC SHOCK CAN KILL. Disconnect electric power and wait 1 minute to allow stored energy to
discharge before doing installation or maintenance. You can get a serious electric shock if electric
power is not disconnected. Electric shock can seriously injure or kill you.
All work that requires removal of the plasma power supply outer cover or panels must be done by
a qualified technician.
Refer to the Safety and Compliance Manual (80669C) for more safety information.
NOTICE
Static electricity can cause damage to printed circuit boards (PCBs). Use correct precautions when
you touch PCBs.
Keep PCBs in antistatic containers.
Put on a grounded wrist strap when you touch PCBs.
The factory presets the voltage divider to 50:1. To change the voltage divider to a different setting:
1. Turn OFF the power supply and disconnect the power cord.
2. Remove the power supply cover.
3. Remove the component barrier from the left side of the power supply.
4. Locate the voltage divider DIP switches on the left side of the power supply.
The figure below shows the default setting (50:1) with the number 4 switch up.
L1
X12 R1
R2
R3
R7
R5
R6
R4
C3
C2
C1 C4
L1
BLK
RED
J1
J3 J4
RED
BLK
J2
21.1 30 40 50
GRN
S1
ALL DOWN = 20
D1
J5