192 Operating instructions
Manual Energy Storage Inverter ESI-S
•
Stop (open the main contactors (AC and DC)) and await user intervention.
In this condition the alarm contact of the ESI-Manager will switch on after
a programmable delay and the ‘Armed’ indicator will be OFF. The green
LED on the main controller board (Cf.
item 18, LED 2) will be off
and the red LED on (Cf.
item 18, LED 3). The user has to
acknowledge the fault (with the ESI-Manager via Modbus or PQF-link or via
remote control) before the inverter can be restarted.
•
By default, the ‘Armed’ indicator is associated with the fourth digital
output contact (cf.
) The digital output contact
monitor at the top of the ESI-Manager display (Cf.
item 3) can be
used to check the status of the digital output. Alternatively, the digital
output considered can be wired to monitor the ‘Armed’ indicator by
distance (cf.
•
Stop (open the main contactor) and restart automatically if the fault
disappears. If stopped, the alarm contact of the ESI-Manager will switch
on after a programmable delay and the ‘Armed’ indicator will be ON. The
green LED on the main controller board (Cf.
item 18, LED 2) will be
ON and the red LED will be OFF (Cf.
item 18, LED 3). If it takes a
long time before the fault disappears, the user may decide to give an
inverter stop command. This is done by highlighting the ‘ESI ACK. FAULT’
item in the ‘Welcome’ menu and selecting
. After this, the ‘Armed’
indicator will be OFF. The green and red LED on the main controller board
(Cf.
item 18, LEDs 2 and 3) will be OFF too.
•
Stop briefly without opening the main contactor and continue to run when
the error has disappeared. This is essentially the same case as the one
described above but the error phenomenon disappears faster than the
time required to generate a main contactor opening command.
•
If the inverter is OFF and an external critical error occurs, these errors are
also reported in the event log. As long as a critical fault condition exists
(e.g. permanent undervoltage on one phase) the display will show the
message ‘ACK. FAULT’ and the inverter will refuse to start; The ‘Armed’
indicator on the ESI-Manager will be OFF and both the green and red main
controller LEDs will be OFF too.
•
In general the occurrence of transient faults is no problem for the proper
operation of the inverter. Only when an error becomes ‘critical’, a problem
may exist.
If ‘ACK. FAULT’ is present on the ESI-Manager display, look at the ‘Armed’ indicator (By
default mapped to the 4
th
digital output of the ESI-Manager) to know whether the
inverter will restart automatically after clearance of the problem or not.
- ‘Armed’ indicator ON: The inverter waits for the problem to disappear and then restarts
automatically (unless the user acknowledges the fault).
