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Installation and Configuration
Remote/Local Operation
28 Operating Manual for RS-232 for XHR/XFR Series Power Supply
Table 2.10 Remote Mode Power On Conditions
Remote Mode
Operation
While in remote mode, use the interface commands to control the output of the
power supply from a computer. See Section 3 for a complete list of
device-dependent commands available with this interface.
From remote mode, change to local mode operation by pressing the front panel
LOCAL button or by sending either the GTL (Go to Local) command or the REN
(Remote Enable) OFF command. You can disable the LOCAL button by using the
LLO (Local Lockout) command. For an example of how to use Local Lockout, see
“Local Lockout (LLO) Command” on page 30.
To return to remote mode, ensure that the REN command is set to ON and then
send any valid device-dependent command. Since the remote mode output settings
may be different from the local mode settings, the output is programmed to protect
the load by turning off when you toggle from local to remote mode during a
session. Check your remote settings and then send OUT ON to restore the output.
Condition Default Settings 7.5-140 Model Example
Voltage 0 V VSET 0
Current 0 A ISET 0
Soft Voltage Limit VMAX (see models) VMAX 7.5
Soft Current Limit IMAX (see models) IMAX 140
OVP Trip Voltage Model VMAX + 10% OVSET 8.25
Delay 0.5 s DLY 0.5S
Remote Enable ON REN ON
Foldback Protection OFF FOLD OFF
Output ON OUT ON
Hold OFF HOLD OFF
Unmask NONE UNMASK NONE
AUXA OFF AUXA OFF
AUXB OFF AUXB OFF