Xantrex Technology RS232-XHR manual Remote/Local Operation on

Operation

Command Reference

Command	Description
OUT <1/ON>,<0/OFF>	Enables or disables the supply’s voltage/current output. The supply will
	continue to accept new commands while the output is disabled but these
	will not be implemented until OUT ON or OUT 1 is received. OUT ON is the
	default setting. When you start the supply in remote mode, the output is
	enabled.
	OUT OFF (or OUT 0) also sets the isolation signal on the rear panel J7
	connector, line 3. You can use the to trip external relays to isolate the power
	supply from the load.
	Initial value: OUT ON (or OUT 1) for output enabled
OUT?	Asks for the present enabled/disabled status of the supply’s output
	voltage/current.
	Response: OUT 1 output enabled or
	OUT 0 output disabled
OVCAL	Causes the master controller to perform automatic calibration of the
	supply’s over voltage protection circuitry. Set CMODE ON before using this
	command. Ensure jumper J65 on the RS-232 Interface PCB is connected
	for remote operation.
OVSET <voltage>	Sets the supply’s over voltage protection trip point in volts (default) or in
	millivolts. If the trip point is exceeded, or if the trip point value is lower than
	the present output voltage setting, the supply will ignore the command, turn
	on the ERR LED, and set the ERR bit in the accumulated status register.
	Reset with the RST command.
	Range: 0 to 110% of model maximum output voltage (VMAX)
	Initial value: 110% of model VMAX
OVSET?	Asks for the supply’s present over voltage protection limit.
	Response: OVSET <voltage>
REN <1/ON>,<0/OFF>	Remote Enable. When set to REN 0, the power supply is in local mode. If a
	command is sent from the computer, the power supply does not respond
	but remains in local mode. When set to REN 1, the power supply will enter
	remote mode if a command is sent from the computer. See also
	“Remote/Local Operation” on page 27.
REN?	Asks for the state of the remote enable. See REN command.
	Response: REN <state>
ROM?	Asks for the version number of the master and slave EPROMs located on
	the interface PCB.
	Response: ROM M:<version> S:<version>
RST	Resets the supply to present voltage and current settings if the output is
	disabled by over voltage or foldback protection. Output values may be
	changed via VSET, ISET, and OVSET while the unit is disabled, but those
	values will not take effect until RST is applied.

48 Operating Manual for RS-232 for XHR/XFR Series Power Supply