HindlePower ATevo Series Operations page 153

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15.4.2. 15.4.2. Virtual Independent Mode Virtual Independent Mode
Virtual Independent Mode detects when an external dc branch breaker is opened while ATevos
are in Forced Load Sharing. ATevos not connected to the same dc bus cannot share load.
If either of these two (2) conditions persist for more than 25 seconds, Forced Load Sharing
ATevos will go into Virtual Independent mode:
• when total load shared between ATevos is less than 1.0 Amperes
• when output voltage of any Secondary ATevo, that is actively sharing load, sags 1.5%
under the Primary ATevo's output voltage
This condition is cleared when the Primary ATevo detects the total current supplied by all
chargers is greater than 1.0 Ampere, and the Primary ATevo itself is supplying at least 0.4
Amperes.
While in Virtual Independent mode, the ATevo will display 'Loadshare Indep. Mode' on the last
line of the display.
15.4.3. 15.4.3. Forced Load Sharing Alarms Forced Load Sharing Alarms
The following alarms related to Forced Load Sharing are logged and can be configured to
trigger the common alarm:
• 'Loadshare Not Ready' – displays on ATevo that is not ready to share load for reasons
including no ac power, low ac power, HVDC shutdown, HLD shutdown, or open DC Breaker
(CB2)
• 'Loadshare Comm Failure' – displays when an ATevo configured for Forced Load Sharing is
not receiving any load share messages
• 'Loadshare Indep Mode' – indicates virtual independence between Forced Load Sharing
ATevos, only reported on the Primary ATevo
Copyright HindlePower Inc. 2021
ATevo Operations–Single Phase Input–Group II (30-100 Adc Output) - 1_en
Last modified: 3 March 2021
Last modified: 3 March 2021
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