Remote Inhibit / Remote Shutdown - Ametek California Instruments MX15 Series User Manual

3.12 Remote Inhibit / Remote Shutdown

It may be necessary to provide a remote shutdown of the AC or DC output of the MX. The
external remote inhibit input may be used for this purpose (RI). This input is also referred to as
remote shutdown.
The default mode of operation for the RI input is a contact closure between pins 5 and 6 (return)
of the rear panel screw-terminal strip. This will open the output relay of the MX. The same can
be accomplished with an active low TTL input signal.
It is possible to reverse the polarity of the RI input. This requires the use of the following bus
command:
OUTPut:RI[:LEVel] HIGH
OUTPut:RI[:LEVel] LOW
Either the RS232, USB, LAN or GPIB interface must be used to perform this setting. Once set,
the polarity setting remains in effect.
When set to HIGH, an active low TTL level or a contact closure is required to enable the output
relay of the MX. Opening the contact or removing the low input signal will cause the output relay
to open.
MX15 Series
/* Sets RI polarity to active high.
/* Sets RI polarity to active low (Factory default)
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