Appendix A Ttl Pin Assignment - Delta A1500 Series User Manual

User Manual
A1500
AC Power Source
 9-PIN D-SUB female connector
Pin
1
number
signal GND
Remote Inhibit：
 OFF ： Disable remote inhibit output function.
 LIVE ： AC source will turn off (turn on) output when TTL signal is low (high).
 TRIG ： When TTL signal changed from HIGH → LOW, and keep at low status
longer than 1ms, output will be turned off and stop detecting TTL signal. User
must press
 EXCITE ： In operation of LIST, PULSE or STEP modes, when at triggering page (please
refer paragraph 3.8.2~3.8.4), AC source output will be triggered on/off by positive
edge TTL trigger signal (LOW → HIGH). Pulse signal must stay at high level at
least 1ms.
AC-ON：
HIGH (LOW) level when AC source output status is ON/OFF.
FAULT-OUT：
LOW (HIGH) when AC source is in normal (protection status due to error)
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Appendix A TTL Pin Assignment

2 3
Remote Inhibit GND
to resume output and enable TTL detection.
OUT
4 5 6
AC-ON --- GND
7 8
GND FAULT-OUT
9
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