Local Lockout (Llo) Command; Rs-232 Connection - Xantrex RS232-XHR Operating Manual

Installation and Configuration

RS-232 Connection

Local
Lockout
(LLO)
Command
RS-232 Connection
30
Use the Local Lockout command to disable the LOCAL button on the power
supply front panel. With LLO in effect, you cannot return to local control by
pressing the front panel LOCAL switch. You can still return to local mode by
sending the Go to Local (GTL) command. To turn off LLO and return the power
supply to local mode, send the REN OFF command. Only the REN OFF command
will remove the LLO condition.
Example:
LLO
GTL
REN OFF
WARNING
Do not operate the power supply and the computer at significantly different frame
potentials. The interface connection system may not be capable of handling the
resulting excessive ground currents.
Use an approved RS-232 connector and cable when connecting the RS-232
Interface to your computer. The RS-232 connector uses the 9 pin mating connector
J5 on the rear panel. Figure 2.4 shows the connector pinouts for the RS-232
connector. Refer to Figure 2.2, on page 21 for the position of the RS-232 connector
on the rear panel subplate.
Figure 2.4 RS-232 Connector (J5) Pinouts (default configuration)
Set Local Lockout
Return the power supply to local mode. Local
Lockout is still in effect
Turn off Local Lockout and return the power
supply to local mode
Operating Manual for RS-232 for XHR/XFR Series Power Supply