Hardware Malfunction Alarms
M370046-01
3-33
3
Power On Status Signal
Power On Status signal indicates a fault condition in the power supply.
Power On Status signal is a TTL output signal at Pin J2.13 with reference
to COM_ISOLATED (Pin J2.2 or Pin J2.6).
During normal operation, the Power On Status signal will be high. If the
output is disabled for any reason, the Power On Status signal will go low.
The following conditions will set the Power On Status to a low level:
•
AC fail
•
Over Voltage protection (OVP)
•
Under Voltage Protection (UVP)
•
Over Current Protection (OCP)
•
Over Temperature protection (OTP)
•
Foldback protection
•
Interlock
•
Output Off
•
Shutdown activated (rear panel shutdown).
•
Internal hardware malfunction
•
Fan failure
Hardware Malfunction Alarms
The power supply will turn off the output. An error message will be
displayed in the event that:
•
OVP trips
•
Voltage deviation in CV mode reaches more than ±5% from the set
level.
1
•
Current deviation in CC mode reaches more than ±5% from the set
level.
1
1.These two forms of hardware malfunction are only monitored in the
corresponding APG mode.
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