GE Industrial Solutions IEMi - Manual (Page 21)

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OPM_OPT_IEM_iXX_XXX_XGB_V010.doc User Manual IEMi - Intelligent Energy Management integrated
4 OPERATION
When IEMi Operation Mode is active, the Inverter control and the selection of the feed path are done
autonomously by the UPS.
Therefore, when IEMi Operation Mode is enabled, Inverters may start/stop at any time.
IEMi START
Start of IEMi Mode Operation is based on the programming of dedicated Parameters and on the Load
being supplied by the UPS system (Q1 closed).
For IEMi Operation Mode to become active a manual Inverter start is required at start-up and after a
Load Off reset.
Additionally, activation is not inhibited from the dedicated input relay function (message 4606).
IEMi Mode Operation start is logged with the message 4604.
When IEMi Mode Operation is enabled, the “Inverter ON” and “Inverter OFF” commands from the Control
Panel, are disabled, since the Inverter control and the selection of the feed path are done autonomously
by the UPS.
During IEMi Mode Operation, the following events will force all Inverters on-line:
• Rectifier Utility/Mains failure.
• Bypass not available.
• Battery test.
• Transfer to Utility/Mains (overload or error detector).
• Connectivity bus failure.
IEMi STOP
Stop of IEMi Mode Operation is based on the programming of dedicated Parameters.
Additionally, activation can be inhibited from the dedicated input relay function.
When IEMi Mode Operation is stopped all inverters are switched on-line; this occurs in one of the
following conditions:
• IEMi Mode Operation is disabled.
The “Inverter ON” and “Inverter OFF” commands are enabled.
• End of programmed time:
The commands “Inverter ON” and “Inverter OFF” from the remain disabled.
• IEMi Mode Operation inhibited from the Input Relay (message 4607).
Only the commands “Inverter ON” and “Inverter OFF” from the Input Relays of the Customer Interface
(IM0005 or IM0171) are active.