KEPCO KLP SERIES, Operator'S Manual

Page: 42 / 110

3-2
KLP073008
• output is disabled (green DC OUTPUT indicator is off). If remote analog mode is
selected (PAR. 3.7), output is enabled unless Remote Inhibit, pin 8 of the Analog I/O
Connector (see Figure 2-2 and Table 2-6) is grounded.
• DC VOLTS and DC AMPERES displays show programmed output conditions: either 0
Volts, minimum Amperes (see NOTE, PAR. 3.2.1) or, if DIP switch position 3 enabled
(see Table 2-2), previously saved setpoint values in effect upon power off.
NOTE: A minimum programmed current is required to ensure proper operation of the power
supply under all load conditions. Programmed current is automatically set to be at least
the minimum current (actual value depends on model, see Table 1-1).
• Since the output is off, Constant Voltage ( CV ) mode indicator (green LED) and Con-
stant Current ( CC ) indicator (amber LED) are off.
3.2.2 SETTING LOCAL/REMOTE MODE
LOCAL MODE. When the power supply is turned on, it is automatically set to Local mode as
long as Analog I/O port pin 12 is not grounded. In local mode the Status display is normally
blank.
DIGITAL REMOTE MODE. The power supply will automatically go into digital remote mode
when digital remote commands are accepted via the GPIB or RS232 ports. In digital remote
mode the power supply normally shows
dRem
in the status display. When in digital remote
mode, all front panel controls are disabled. If desired, local mode can be restored by pressing
both
VOLTAGE and CURRENT controls simultaneously; the power supply will then remain in
local mode until another digital command is received, causing the unit to return to remote digital
mode. To disable local mode entirely, see PAR. 3.2.2.1 for front panel lockout.
TABLE 3-1. POWER-UP BUILT-IN TEST ERROR CODES
ERROR CODE MEANING
E310
System Error
E313
Calibration Memory Error
E315 Configuration Memory Error
E341
Memory Error (CRC)
E330
Self Test Error
Ecal Calibration Error - The unit will try to restore the previous calibration.
Eclp
Previous Calibration Error - After detecting a Calibration Error (Ecal) and trying to use
the previous calibration, an error was detected, and the unit will attempt to restore the
factory calibration.
Eclf
Factory Calibration Error - The unit has failed to restore the factory calibration after
failing to restore the previous calibration. The unit will not operate after this error has
been displayed and must be referred for service.
NOTE: During power-up the power supply performs detailed software check sequences. If a failure is detected dur-
ing power-up, the DC VOLTS and DC AMPERES displays are blanked and the Status display shows an error code.
For errors that occur after power-up, refer to Appendix B, Table B-4 for typical error codes and possible causes. For
these and all other error codes, refer to authorized service personnel for corrective action.