Veichi AC310 - Chapter 3 AC300 CON-A1.0 Control Board Introduction and Brief Detection and Maintenance; Summary of IC Related Information

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AC310 Universal AC Drive Service Manual
Chapter 3 AC300CON-A1.0 Control Board
Introduction and Brief Detection and
Maintenance
3.1 Summary of IC Related Information
Bit number
Name
Control Information
Specification
O9, O1, O3,
02, O4
General
Optocoupler
Multi-function terminals X1-X5
in sequence
EL3H4
O7
General
Optocoupler
Relay switch signal
EL3H7(B)(TA)-G
O6
General
Optocoupler
Y terminal signal
EL3H7(B)(TA)-G
U20
Op-Amps
Analog AI1, AI2 inputs
LF353DRG4
U12
Op-Amp
Analog AO output
TL084IDR
U4
Op-Amp
Current sampling (IU, IV, IW)
TL084IDR
U4
Op-Amp
VPN Op amp
TL084IDR
U9
Comparator
IU Overcurrent/wave-by-wave
current limit comparator
LM239DR
U8
Comparator
IV Overcurrent/wave-by-wave
limit comparator
LM239DR
U7
Comparator
IW Overcurrent/wave-by-wave
current limit comparator
LM239DR
U10
Octal Driver
Drive Signal:
UH/UL/VH/VL/WH/WL
SN74ACT244PWR
U1
485 Communication
485 Communication Chip
SP485EEN-L
U16
485 Communication
External 485 keyboard
communication
SP485EEN-L
U6
Memory
Memory IC
AT24C32D-SSHM-
T
U3
Programmable IC
CPU
SN74LV74ADR
U11
Logic Chip
System Failure Hardware
Blocking Point IC
SN74LV74ADR
U15
Reset Chip
Reset Chip
SP809EK