Hypertherm HT4400 HySpeed Plasma Arc Cutting System - Manual (Page 110)

MAINTENANCE
HT4400 Instruction Manual 5-19
3
Analog Board PCB3 - Status Indicators
See page 6-2 for location of Analog Board.
Note: • D15 Arc transfer output - illuminates when total current sensor (CST) senses a current higher than
30 amps.
• D11, D12, D13, D17 Chopper outputs - illuminates when each chopper current sensor (CS1-CS4)
senses a current higher than 7 amps.
• D5 Current Detect from CH1&CH2 - illuminates when both CH1&CH2 output more than 7 amps.
• D4 Current Detect from CH3&CH4 - illuminates when both CH3&CH4 output more than 7 amps.
D17
Current Detect
from CH1
D15
Arc Transfer D5
Current Detect
from CH1&CH2 D1
+15 VDC D4
Current Detect
from CH3&CH4
D13
Current Detect
from CH2 D12
Current Detect
from CH3 D11
Current Detect
from CH4
REC9
REC10
REC5 REC6 REC7
REC3
REC4