KEPCO KLP 10-150-1.2K, Руководство пользователя

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3-16
KLP031308
3.2.13.5.2 FAULT RECOVERY CONFIGURATION
The KLP allows the user to control how the unit recovers from faults, and allows different
responses for different faults. This function is password-protected. The three recovery options
are PROT, SAFE and AUTO.
• PROTected - When a fault configured as PROT is detected, the output is disabled.
Recovery requires that the user turn the unit off and wait five seconds before turning the
unit on. After initializing, the output is disabled and the unit is in Setpoint mode, pro-
grammed to 0 Volts, minimum current, except that if last setting recall (PAR. 3.2.7.3) is
enabled, the Setpoint values are from the last setting. This is the safest recovery option,
forcing the operator to reboot the power supply before programming and re-enabling the
output, hopefully after eliminating the cause of the fault. PROT is the factory default set-
ting for all fault recoveries.
• SAFE - When a fault configured as SAFE is detected, the output is disabled and the unit
is returned to Setpoint mode (programmed to zero volts, minimum current); if last setting
recall (PAR. 3.2.7.3) is enabled, the Setpoint values are from the last setting. Recovery
requires that the user exit Setpoint mode and re-enable the output, either from the front
panel or via one of the digital programming ports. Recovery cannot be initiated by tog-
gling the remote inhibit line at the analog programming port. This option provides greater
operator convenience by eliminating the need to reboot the power supply while preserv-
ing a safe response (output off), but it is the user’s responsibility to NOT attempt multiple
consecutive restarts without eliminating the fault condition.
• AUTOmatic - When a fault configured as AUTO is detected, the output is disabled as
long as the fault condition exists. When the fault condition is no longer present (e.g., the
unit has cooled after an OTP overtemperature fault) the output returns to its last state
(OFF or ON) and the unit is programmed to zero volts, minimum current, except if last
setting recall (PAR. 3.2.7.3) is enabled, the unit is programmed to match the last setting.
While offering the greatest convenience to the user, this option represents the highest
risk because the output can reappear without warning when the fault condition clears. To
alert the user to this risk, if any fault is set to AUTO recovery, the status display briefly
shows
AUTO
after a) any fault recovery, b) any output enable action or c) upon leaving
Setpoint mode. In addition, if AUTO recovery is selected for source power failure (PWR)
faults, the status display flashes
AUTO
for one second as part of the power-up sequence.
If more than one fault occurs, the fault with the lowest risk level determines the unit’s response,
however multiple faults will cause the output to be off upon recovery, even if set to AUTO.
The factory default configuration is PROTECT for all faults. Note that some faults have limited
options. The recovery options for each fault are:
• OVP (Overvoltage Protection fault) PROTECT or SAFE
• OCP (Overcurrent Protection fault) PROTECT or SAFE
• OLF (Output Lead Fault) PROTECT or SAFE
• TEMP (Temperature fault) PROTECT, SAFE or AUTO
• PWR (Loss of source power fault) PROTECT, SAFE or AUTO
• FAN (Fan failure fault) PROTECT (not configurable)