RF POWER SUPPLY and MATCHINGBOX
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4-1-5. Descriptions of external control functions
Table 4-3 External control (EXT.CONT) pin assignments
When interlock/alarm: OPEN
0 V to 10 V: 0 W to rated traveling wave power
0 V to 10 V: 0 W to rated reflected wave power
0.1 V to 10 V: 0 W to rated traveling wave power
0 V to 10 V: 0 V to rated VDC voltage
0 V to 10 V: 0 V to rated VPP voltage
CLOSE: Release the interlock
Receiving power state: CLOSE
CLOSE: Reset ALARM (CLOSE while RF-ON: RF-OFF)
TUNE variable capacitor position upper/lower limit: CLOSE
LSB0 (Short 27-31: H / OPEN: L)
LSB1 (Short 28-31: H / OPEN: L)
LSB2 (Short 29-31: H / OPEN: L)
LSB3 (Short 30-31: H / OPEN: L)
Signal common for 27 to 30 and 32 to 33
CLOSE: Start variable capacitor preset operation
CLOSE: Change to program select number
OPEN: AMC=AUTO/CLOSE: AMC=MANUAL
AMC=AUTO: OPEN/ AMC=MANUAL: CLOSE:
MATCH variable capacitor position upper/lower limit: CLOSE
When program number updated: CLOSE
When preset completed: CLOSE (500 ms)
When arc detected: CLOSE (100 ms)
* (E) indicates the emitter output, (COM) is the frame ground.