HMC6 Power Management Controller User Manual
Page 25 of 87
No.
Types
Description
Alarm Type
12
SG
&
DG
Parallel No. Out
of Limit
When the controller detects that the number of DG in
the network exceeds the limit when SG synchronizes,
SG & DG parallel number exceeds the limit and alarms.
Warn
It is active when it is SG
mode
13
SG Insufficient
Capacity
When the controller detects that SG capacity is unable
to receive the total loads, SG capacity is insufficient to
output and an alarm is given.
Warn
It is active when it is SG
mode
14
DG Insufficient
Capacity
When the controller detects that SG capacity is unable
to receive the total loads, DG & DG parallel number
exceeds the limit and alarms.
Warn
It is active when it is SG
mode
15
Timeout of SG
&
DG
Grid-connection
When the controller detects timeout of SG & DG
grid-connection, it outputs and alarms.
Warn
It is always active
Switch Protection
1
Fail to Close
When controller detects that there is no
Close
signal
after the Close delay has expired, it will initiate a trip
alarm.
Lock
It is active after the switch
has closed.
2
Fail to Open
When controller detects that there is no
Open
signal
after the Open delay has expired, it will initiate a trip
alarm.
Lock
It is active after the switch
has opened.
3
Abnormal Trip
of Main Switch
When the controller detects that the main switch
abnormal trip input port is active, the controller
initiates an alarm signal.
Trip
It is active after it is
closed.
4
External
of
Main
Switch
Open
When the controller is grid-connected in non-manual
mode, it detects that the feedback input port of
generation closing is inactive and the voltage, power
and current are both 0, then the controller initiates an
alarm signal.
Trip
It is active after it is
closed.
5
BUS
Bar
Breakdown
Feedback Fault
When using BUS bar breaker, if the Bus bar breakdown
input is active of other controllers on bus tie, but the
current bus breakdown input is inactive, an alarm is
given.
Warn
It is active after Bus bar
breakdown is enabled.
6
SG
Solenoid
Valve Fault
When the SG mode is enabled and the input port is
configured with the shaft solenoid valve closing
feedback is effective, alarm will be given if the
feedback state of the shaft solenoid valve closing and
opening is inconsistent with that of the controller.
Warn
SG mode enables and
input port configures with
solenoid valve closing
feedback is effective.
Module Protection
1
Over Volt
When controller detects the power supply voltage has
exceeded the set value, it will initiate a warning alarm.
Warn
Always active
