Input Port
IC7,8
Reference DAC
IC12
Outpot Port
OUTPUT ON/OFF
Isolation
EEPROM
IC9
Compalator
IC16
Mon. DAC
IC14
DATA
CLOCK
Error Amp
IC105
Monitor Amp
IC107
Reference Amp
IC106
Alarm Circuit
Q108,PH101
OVP Compalator
IC101
OHP
OCP
Pri.OVP
(POWER UNIT)
Pri.OHP
(AC UNIT)
CC Monitor
M/S Reference
Set Up VR
(PANEL UNIT)
+ Sensing
- Sensing
CC Status
Voltahe
Regulator
IC112,113
+15 -15
+5
-5
CPU
+5 GND
D_IN
D_OUT
(CPU)
External
OUTPUT ON/OFF
Trip
(MOTHER UNIT)
Control
(MOTHER UNIT)
+5
CPU
GND
+15
-15
CONTROL UNIT (X77-2120-0X)
PDS20-18/PDS36-10/PDS60-6
16
BLOCK DIAGRAM
PDS-20-18(K)
1,1(
98.12.3
17:07
y[W
16