20 Chapter 4 Use Of Monitoring Module M500D
Serial
No.
Alarm
Description
Default
alarm
level
Default
related
relay
Related parameter
configuration
16
Mains Failure
All the AC input voltages from the rectifier are
less than 80V
Major
1
17
AC Voltage
Low2#
AC input voltage less than “AC Low#2”. The
default for AC Voltage Low#2 is 80Vac
Observati
on
None
AC input under-
voltage alarm point
18
AC Voltage
Low1#
AC input voltage lower than the setting of “AC
Low#1”. The default for AC Voltage Low#1 is
180Vac
Observati
on
None
AC input under-
voltage alarm point
19
AC Voltage
High
AC input voltage higher than the setting of “AC
High”. The default for AC Voltage High is 280Vac
Observati
on
None
AC input over-
voltage alarm point
20
Maintain Alarm
Time to maintain system
Observati
on
None
21
Self-detect Err
Hardware Self-detect Error
No Alarm
None
22
Manual Mode
Battery management is in manual control mode
Observati
on
None
23
High Load
When system reaches settable level of total
capacity. The default is 75%
24
Power Major
System contains Major or Critical alarm (red LED)
Critical
None
25
Power Minor
System contains Observation alarm (yellow LED)
Critical
None
26
Rectifier Lost
The controller has detected a reduction in the
number of running rectifiers
Observati
on
None
27
Multi-Rect
Alarm
More than two rectifiers alarm
Critical
None
28
Load share
Alarm
The output current of one rectifier is higher than
the certain value and higher than the average
value for all rectifiers
Critical
None
29
Rect Not
Respond
Rectifier does not communicate with M500D
Major
3
30
Rect AC Fail
AC input voltage of this rectifier lower than 80V
Major
3
31
Rect HVSD
This rectifier output voltage was higher than the
rectfier HVSD setting and has shut down
Major
3
32
Rect Failure
Serious load sharing alarm (the output current of
the rectifier is lower than 1A and the average load
is greater than 6A). Or rectifier’s ID repetition
Critical
3
33
Rect Protect
AC over voltage or Rectifier PFC failure or
current imbalance or Over-temperature or AC
Low voltage or AC phase loss or position pin
failure or Inner communication fault
Observati
on
3
34
Rect Fan Fails
Rectifier fan fails
Major
3
35
Rect Derated
Rectifier AC input voltage is low and the rectifier
internal temperature is high and high load
Observati
on
3
36
Temp Alarm
Temperature higher or Lower than the setting of
Temp,inluding Ambient temp and battery Temp
Observati
on
None
37
Batt Over Temp
Battery temperature higher than the setting of
“High Temp”, inluding temperature sensor fault
Major
None
Over-temperature
alarm point
38
Digital 1 ~
Digital 6
Alarm name can be defined by users. Whether
the alarm is triggered at high voltage level or low
voltage level can be configured
No alarm
8
39
Digital7 /LVD1
Alarm
Alarm name can be defined by users. Whether
the alarm is triggered at high voltage level or low
voltage level can be configured
No alarm
None
40
Digital8 /LVD2
Alarm
Alarm name can be defined by users. Whether
the alarm is triggered at high voltage level or low
voltage level can be configured
No alarm
None
NetSure 501 A50, NetSure 501 AA0, NetSure 701 A51 19-Inch Subrack Power Supply System User Manual