Xantrex Technology XDC - Manual (Page 76)

Operation
Power Supply Operation
74 Operating Manual for XDC Series Power Supply
Shutdown vs Protection Alarm
If a protection setpoint is exceeded, the system does the following:
1. If S/D if tripped? Y has been selected, the unit shuts down.
If it is an OVP alarm, the unit shuts down.
2. If S/D if tripped? N has been selected, and it is not an OVP alarm, the
unit does not shut down but does create an alarm message.
3. If the unit is not shutting down, the system still sets the appropriate status bits in
the questionable status register, which can be queried remotely. See “Status
Registers” on page 142 for more information.
Set Up
Remote
Control
The power supply can be controlled locally with the front panel or remotely through
several different interfaces. The remote interfaces are discussed in Section 4,
“Remote Operation”, Appendix B. “SCPI Command Reference”, and Appendix D.
“GPIB”.
The factory default remote control setting is RS-232. It has a default configuration
of 9600 baud.
Toggle
Local/Remote
The LCL/RMT key allows you to shift between local and remote control.
To shift from local to remote control:
In the case shown, the power supply has changed from local, front panel control to
remote control through its RS-232 port. The remote control options are RS-232,
Analog V and I, Analog V, Analog I, GPIB, and Linked. You can change the remote
control source through the
REMOTE SELECT menu option. (See “Select Remote
Control Source” below.)
There are 2 exceptions to this function:
• If the power supply has Local Lockout (LLO) active, it will not let you shift from
remote to local control. Instead, the display will show LLO on, and the system
will remain in remote control.
• If the system is using GPIB, it will shift to remote control only when the Remote
enable line, REN = 1 and a command is sent from the remote controller.
Do This You Will See
RS-232 LCL/RMT