Selecting The Mode: Overview; Operating Conditions - ABB REACT-3.6-TL Application Note

5.1 Selecting the mode: overview

Before describing each individual Mode, we will provide a summary table of all the conditions for the
activation and operation of the system in connection with the mode selected in order to guide the
user/designer in the selection of the most appropriate mode:
The following section describes in detail each individual backup operation mode indicated in the table.

5.2 Operating conditions

1. Mode: Manual 1
In Manual Mode 1, the inverter may operate in the backup mode if and only if the following two conditions
simultaneously exist:
1. Control/signal from external logic (to set the control, see section 5.4)
INPUT
2. Manual start (press "Enter" on the display for at least 5 sec);
CONDITION
S
This mode may be used whenever condition 1 exists (previously established according to a preset control
logic) and the user wants to activate backup operation, even in presence of the home network. The
external control logic can be associated with the state of the network by closing a NO contact in case of
malfunction or absence of power in certain sections of the system or in the entire dwelling. The activation
signal may even be linked to a contact of the Load Manager Relay installed in the REACT system by using
the time window setting of the relay (see the product's manual) or to any other external logic established
by the user/designer during the design of the system.
In the event that the activation logic is not linked to a power failure, when Conditions 1 and 2 occur, the
inverter will disconnect and switch to backup operation mode.
Two possible schemes that can be designed and that describe the operation of this mode are shown below:
Power failure
(at the output terminals
of the inverter)
Manual 1
Manual 2
Manual 3
√
Manual 4
√
Auto 1
Auto 2
√
None
Application Note| REACT-3.6/4.6-TL – BACKUP OUTPUT|Operation and Configuration 7
Manual start External logic
(press 'Enter' for 5 sec)
signal
√
√
√
√
Black-out
system
√
√
√ √
√
√