Delta HPH-20KA01KAT, User Manual

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Delta Electronics. Inc.
HPH-
20KA01KAT
14
Chapter 4: System Protection Mechanism
4.1.
Input Breaker
The function of this switch is to prevent over current at input side from any malfunction
happening and simultaneously provide a manual switch for user to turn off the power supply.
4.2.
Protection by MCU (A: Auto Recovery, L: Latch)
Table 4.1 Definition and description of MCU protection
Alarm Condition Code Description Mode
HW Fault M1 01 Hardware error from the left module A
HW Fault M2 02 Hardware error from the right module A
SW OVP 03 Output over voltage A
SW OCP 04 Output over current A
SW OPP 06 Output over power A
Arc Number Limit 07 Arc number is over setting parameter L
Target Life Monitor
09 Power off while output reaches setting Energy L
Output Interlock 11 Uninstallation of output cover L
Contactor Interlock 12 Uninstallation of contactor pin in D-sub connector L
Communication Loss 15 Error from internal communication L
Fan1 Error 17 Error from the left fan L
Fan2 Error 18 Error from the right fan L
Bus UVP 20 Input voltage is under operation range L
Bus OVP
21 Input voltage is over operation range L
GND Detect 22 Positive output is not connected to system ground L
Set Point Monitor 23
Error while output fails to reach setting parameter
within setting time
L
Energy Mode Monitor 24 Power off while output reaches setting energy L
Parallel Fault 000 Fault from other PSU (showing on Slave) L