56 Electrical design and installation
Manual Energy Storage Inverter ESI-S
Case 4: Cabling of the digital output contacts to monitor other Inverter operation
modes than warnings and alarms.
Case 5: Cabling of main/auxiliary control functionality.
Case 6: Implementation of local start/stop buttons.
It is recommended that for additional functions that are cabled to the ESI-S, a connector
approach is used such as is the case for the internal communication and ESI-Manager
power supply.
WARNING: Before cabling any of the circuits discussed below, switch off the power
supply to the inverter. When the inverter has already been installed on site, this is done
by opening the protection system located just upstream of the inverter and opening
the auxiliary fuse box present in the inverter. Wait for at least 25 minutes to allow for
the DC capacitors to discharge when the inverter has been connected to the network
before. Failure to do so may result in lethal injury or death.
After making and verification of all the electrical connections
−
Restore the top cover(s) of the units including the connection of the
ESI-Manager to the master unit
−
The power to the inverter may then be restored
6.13.1 Cabling of remote control functionality
The ESI-S has the possibility to be controlled by remote control. An example of this
approach is a drive that is switched on at a location and which automatically gives a start
command to the inverter. When the drive is then stopped, the drive sends automatically
a stop command to the inverter too. This section gives an example of how the cabling
has to be done on the inverter side.
Any of the two digital inputs on the ESI-Manager (Cf.
) can be used to cable the
remote control functionality. The electrical requirements of the digital inputs are given
in
(inverter characteristics section).
implement the remote control functionality on Digital Input 1.
