3.3 Monitor and control signal system
HVA4321
3-15
SIGNAL ON/OFF
SIGNAL ON/OFF controls a batch ON/OFF operation for input signals with external signal.
When SIGNAL is ON and ON becomes OFF for some reason, turn the control signal OFF once and
turn it ON again. Otherwise, SIGNAL is not ON.
Figure3-22. Remote control of signal ON/OFF
Table3-3. Logic of SIGNAL ON/OFF signal
SIGNAL ON/OFF signal in remote control operation
TTL High(Positive
logic) Low(Positive logic)
Back panel control
signal
Contact
Open Close
Signal status
OFF
ON
オフ 状 態
オ ン 状 態
オ フ 状 態
正 面 パ ネ ル
REMOTE
/
LOCAL
ス イ ッ チ
背 面 パ ネ ル
SI GNAL ON/OFF
信 号
出 力 の 状 態
LOCAL
REMOTE
ON
OFF
ON
OFF
オ ン状 態
ON
OFF
(1)
過 電流 など で出 力 がオ フす る と、
(2)
出 力 オン 指令 中 でも
一 度 オフ にし な いと 再度 オ ンし ない 。
Front panel
REMOTE/LOCAL
switch
Back panel SIGNAL
ON/OFF signal
Output status
OFF status
ON status
OFF status
ON status
ON status
(2) It must be turned OFF once and ON again
when the output ON command is given
.
(1) When the output is OFF due to over-current
Содержание HVA4321
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