Power Supply Unit; Structure Of Power Supply Unit - JUKI FX-1 Maintenance Manual

FX-1/FX-1R Maintenance Manual

13-3. Power Supply Unit

13-3-1. Structure of Power Supply Unit

The power supply unit is mounted at the left of the rear of the machine (right side when viewed from
the rear). Figure 13-3-1-1 shows the structure drawing of the power supply unit.
The power supply unit is composed of DC power supplies, control relays, and circuit protectors, and
designed to supply the AC and DC power to the units (control unit, X-Y unit, Z-θ unit, transport unit,
and head unit.)
The following shows the application of each DC power supply.
• -12V (-12V ± 0.1V, PS5):
• +3.3V (+3.3V ± 0.1V, PS7):
• +5V (+5.15V to 5.2V, PS6):
• +24V (+24 ± 0.1V, PS2):
• +12V (+12 ± 0.1V, PS4):
• +24V (+24 ± 0.1V, PS3):
• +6V (+6.3V to 6.5V, PS8):
• +6V(+5.3V±0.02V, PS1)
• +6V(+5.3V±0.02V, PS9)
13-3-1-1. Adjusting Method of DC Power Source Voltage Level
•
The DC power output voltage is to be adjusted on the CN004 and CN036 of the power supply
unit.
•
Adjust the DC power source voltage levels while referring to Table 13-3-1-1.
No Power supply name Adjustment value
1 PS2 +24.0V±0.1V
2 PS4 +12.0V±0.1V
3 PS5 −12.0V±0.1V
4 PS6
+5.1V±0.02V
5 PS7 +3.3V±0.1V
6 PS8 +6.4V±0.1V
7 PS1 +5.3V±0.02V
8 PS9 +5.3V±0.02V
Note 1. Carefully adjust the variable resistor so that the voltage value does not exceed the
specified adjustment level.
Note 2. Never connect CN073-12 and 24 pins, CN004-1 and 13 pins to the GND line of a
power supply unit other than that to be adjusted.
A/D conversion circuit
For CPU board and XMP board (motion control),Position
board (motor control)
For logic circuits of all circuit boards
For driving of relays, solenoid valves, stepping motors,
sensors, laser devices, and signal light lamps
For camera, serial communication, and lighting of LED
For driving of safety circuit (EN machine only)
For controlling of feeder (32mm-paper tape)
For Zθ amplifier (left head)
For Zθ amplifier (right head)
Table 13-3-1-1
Measuring point
CN073 18pin(+) - 6pin(−)
CN073 16pin(+) - 4pin(−)
CN073 17pin(+) - 5pin(−)
CN073 15pin(+) - 3pin(−)
CN073 13pin(+) - 1pin(−)
CN073 19pin(+) - 7pin(−)
ZT-amplifier (Lower portion of left
head) 5V - GND
ZT-amplifier (Lower portion of right
head) 5V - GND
13-3
Measuring point if CN073 is not provided.
CN036 11pin(+) - 12pin(−)
CN036 7pin(+) - 8pin(−)
CN036 9pin(+) - 10pin(−)
CN036 5pin(+) - 6pin(−)
CN036 1pin(+) - 2pin(−)
CN004 6pin(+) - 18pin(−)
Same as left.
Same as left.
Rev. 2.00