Installation and Configuration
Initial Inspection
20 Operating Manual for RS-232 for XHR/XFR Series Power Supply

Figure 2.1

Power Supply Front Panel with RS-232 Interface Installed (1200 Watt Power Supply Shown)

!

CAUTION

Use proper static control techniques to avoid damage to static-sensitive components

on the printed circuit board.

Address LED (ADR)
Indicates that the master controller is addressing the unit.
Service Request LED (SRQ)
Comes on at power up if the PON SRQ switch is set to
on. You can enable the SRQ LED during normal
operation with the SRQ command.
Error LED (ERR)
Indicates when a programming error has occurred. You
can clear the ERR LED with an error query command.
Fault LED (FLT)
Indicates that a fault has occurred. The fault bit
must be unmasked. Refer to the status register in
Table 3.8, on page 52. Momentarily lights if PON
SRQ is set to on.
Polarity LED (POL)
Indicates that the polarity user line has been
activated. See “Connector J7 User Signals”
on page 34.
Local Switch (LOCAL)Remote LED (REM)
Remote Programming LEDs: