
Chapter 2
2-26
2.7
Power Supply
2.7.1
Overview
0006-1979
Upon being turned on, the host machine supplies 24 VDC and 13 VDC to the finisher
controller PCB immediately. 24 VDC is used to drive motors. 13 VDC is converted to 5 V
by the DC-DC converter in the finisher controller PCB to be used to drive sensors and ICs.
F-2-26
2.7.2
Protection Function
0006-1980
24 VDC lines connected to motors are provided with fuses for overcurrent protection.
The 24 DVC line connected to the host machine is provided with a fuse (FU1) and the 13
VDC line connected to the logic circuit is also provided with a fuse (FU2) for overcurrent
protection.
M5
M4
M3
M2
M1
24V
13V
24V
5V
3.3V
5V
FET
5R
CW/CCW
PWM
A/B
lref
CW/CCW
PWM
A/B
A/B
lref
lref
Summary of Contents for imageRunner iR2270
Page 11: ...Chapter 1 Specifications ...
Page 20: ...Chapter 2 Functions ...
Page 38: ...Chapter 2 2 17 F 2 19 ...
Page 48: ...Chapter 3 Parts Replacement Procedure ...
Page 117: ...Chapter 4 Maintenance ...
Page 133: ...Chapter 5 Error Code ...
Page 134: ...Contents Contents 5 1 Service Error Code 5 1 5 1 1 Service Error Code 5 1 ...
Page 138: ......
Page 145: ...Chapter 1 Specifications ...
Page 152: ...Chapter 2 Functions ...
Page 163: ...Chapter 3 Parts Replacement Procedure ...
Page 167: ...F 3 6 1 2 Chapter 3 3 3 2 Remove the two screws 1 at the back to detach the upper cover 2 ...
Page 170: ...F 3 13 1 2 Chapter 3 3 6 8 Remove the two screws 1 to detach the punch motor 2 ...
Page 175: ...Chapter 4 Maintenance ...
Page 186: ...Chapter 5 Error Code ...
Page 193: ...Appendix ...
Page 195: ......
Page 202: ...Chapter 1 Specifications ...
Page 206: ...Chapter 2 Functions ...
Page 207: ...Contents Contents 2 1 Basic Construction 2 1 2 1 1 Functional Construction 2 1 ...
Page 209: ...Chapter 3 Parts Replacement Procedure ...
Page 221: ...F 3 31 1 2 3 Chapter 3 3 11 ...
Page 222: ...Chapter 4 Maintenance ...
Page 228: ...Chapter 5 Error Code ...
Page 233: ......