ABB ATS022 Installation And Operating Instructions Manual page 33

6. Input and output signals
2 CBs:
If DI9 is closed:
• Generator Start
• Opening of circuit breaker CB1
• closure of circuit breaker CB2
If DI9 is open:
• opening of circuit breaker CB2
• closure of circuit breaker CB1
• generator stop
3CBs NPL:
If DI9 is closed:
• Generator Start
• Opening of circuit breakers CB1 and CB3
• closure of circuit breaker CB2
If DI9 is open:
• opening of circuit breaker CB2
• closure of circuit breakers CB1 and CB3
• generator stop
3CBs NPL BUS TIE:
If DI9 is closed:
• Generator Start
• Opening of circuit breakers CB1 and CB3
• closure of circuit breaker CB2
If DI9 is open:
• opening of circuit breaker CB2
• closure of circuit breakers CB3 and CB1
• generator stop
DI10 Programmable input
The function associated with input DI10 can be selected from the menu on the display, from among the
following options:
• forced generator start: this function makes it possible to test the correct switching ON/OFF of the
generator with the plant running
Contact type set
NC
NO
The DI10 contact programmed as a generator starting override is active with ATS022 configured with
priority line LN1 and with backswitching.
If one of these conditions does not exist, the option is not available or, if activated previously, will be
automatically DISABLED.
NOTE: DI10 in Generator Start configuration has to coexist with other ATS022 functions that impact
the management of the generator; for this reason there is a hierarchy and some limitations, which are
outlined below.
1SDH000760R0002
Installation and operating instructions, ATS022
Description of function
Open =gen start; Closed = gen stop
Closed =gen start; Open = gen stop
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