AMETEK RS Series User Manual
Page 59
User Manual
AMETEK Programmable Power
RS Series
59
3.11 Remote Inhibit / Remote Shutdown
It may be necessary to provide a remote shutdown of the AC or DC output of the RS. 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 RS.
It is possible to reverse the polarity of the RI input. This requires the use of the following bus
command:
OUTPut:RI[:LEVel] HIGH
/* Sets RI polarity to active high.
OUTPut:RI[:LEVel] LOW
/* Sets RI polarity to active low (Factory default)
The remote control interface must be used to change this setting. Once set, the polarity setting
remains in effect.
The way the RS responds to a remote inhibit event can be programmed over the remote control
interface using the OUTP:RI:MODE command. See P/N 7003-961 programming manual for
details on changing modes. The mode set is retained at power off and recalled at power up so
stays in effect till changed again over the bus.
The following modes are supported.
MODE
OPERATION
LATCHING
A TTL low at the RI input latches the output in the
protection shutdown state. This state can only be
cleared by sending a OUTPut:PROTection:CLEar
command over the bus.
LIVE
The output state follows the state of the RI input. A TTL
low or contact closure at the RI input turns the output
off; a TTL high or open contact turns the output on.
This mode is equivalent to using the Output On/Off
button on the front panel.
Default mode. Units are shipped in this mode.
OFF
The instrument ignores the RI input.
Table 3-14: Remote Inhibit Mode Settings
NOTE: When using the Remote Inhibit input, it will be necessary to disconnect any RI
connection to the RS master unit when turning on the RS master unit. During
initialization, the RI connection must be OPEN or initialization will be halted with
the message WARING FOR AUXILIARY displayed on the LCD screen.