Manual Energy Storage Inverter ESI-S
Electrical design and installation 75
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The inverter top cover may be replaced including the connection of the ESI-
Manager to the master unit
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The power to the inverter may be restored
Refer to
Section 7.9.2.4.2
for guidelines on how to set up the digital inputs according to
the function required.
6.14.6Implementation of local start/stop buttons
WARNING: If a function is assigned to a digital input, the same function must never be
assigned to the other digital input. Otherwise the inverter may behave erratically.
The ESI-S active inverter is equipped with a start/stop function integrated in the ESI-
Manager user interface. If the customer desires this however, he can add extra
start/stop buttons (not provided) to the inverter system. The start and stop button has
to be connected to the ESI-Manager’s digital inputs and the ESI-Manager has to be set
up accordingly.
Note that in a multi-unit inverter system in which more than one master system is
present, the digital inputs of all masters have to be set up and cabled in the same way
to obtain full redundancy.
Two connection approaches exist:
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The first approach is to use one digital input for the start function and the second
digital input for the stop function.
shows the ESI-Manager setup for the
input considered and the resulting effect when applying voltage to this input.
Table 31: Inverter behavior as a function of the ESI-Manager settings for local start/stop
and using 2 digital inputs
ESI-Manager setup for
digital input
Vlow applied to digital
input
Vhigh applied to digital input
Edge ON
No effect
Inverter starts on rising edge
Edge OFF
No effect
Inverter stops on rising edge
Remark: Vlow = 0 Vdc, Vhigh = 15-24 Vdc
When using the Edge ON function the inverter can only be switched on by applying
voltage to the digital input considered. It is therefore recommended in that case to
configure and cable the second digital input as Edge OFF. Refer to
Section 7.9.2.4.2
guidelines on how to set up the digital inputs according to the function required.