Siemens SENTRON ATC6500 - Page 148

Operation
8.2 Inputs and outputs of the ATC6500
3KC ATC6500 transfer control device
146 Manual, 05/2019, L1V30538268002A-01
Function
Designation on the
ATC6500
Description
Disabled
Disabled
Input disabled
Configurable Configurable Free configuration by the user
Source 1 breaker closed (feed-
back 1)
BRK1 Feedback Auxiliary contact informing the ATC6500 whether the breaker of
Source 1 is open / closed. If this signal is not connected, the
breaker for the ATC6500 has the same status as the control out-
puts.
Source 2 breaker closed (feed-
back 2)
BRK2 Feedback Auxiliary contact informing the ATC6500 whether the breaker of
Source 2 is open / closed. If this signal is not connected, the
breaker for the ATC6500 has the same status as the control out-
puts.
Source 1 breaker protection
(Trip 1)
BRK1 Trip If the contact is closed, the alarm is triggered due to the protection
trip of the Source 1 breaker.
Source 2 breaker protection
(Trip 2)
BRK2 Trip If the contact is closed, the alarm is triggered due to the protection
trip of the Source 2 breaker.
Source 1 breaker withdrawn BRK1 withdrawn If the contact is closed, the alarm is triggered as a result of break-
er 1 being withdrawn.
Source 2 breaker withdrawn BRK2 withdrawn If the contact is closed, the alarm is triggered as a result of break-
er 2 being withdrawn.
Transfer to secondary source Remote switch If this contact is closed, the transfer to the secondary source is
initiated even if the voltage of the priority source is within the limit
thresholds. It can be used for switching the priorities between
Source 1 and Source 2. The secondary source breaker remains
activated for as long as this source is within the limit thresholds.
Can be used for the EJP function.
Inhibit automatic return to prior-
ity source in IN-PHASE transi-
tion
Inhib. return pri. line If this contact is closed, it inhibits the automatic return to the priori-
ty source if this supply is within the limit thresholds again. It is
used to prevent automatic return from causing a further power cut
at an unforeseeable time. The function must be used for the
IN-PHASE transition.
Inhibit automatic return to prior-
ity source
Inhibit.ret.open tra. If this contact is closed, it inhibits the automatic return to the priori-
ty source if this supply is within the limit thresholds again. It is
used to prevent automatic return from causing a further power cut
at an unforeseeable time.
Generator start Rem. start off load If this contact is closed, it causes the prioritized generator to start
after the time set in P08.11 when in the AUT mode. Can be used
for the EJP function.
Start generator 1 Gen1 start off load If this contact is closed, a transfer is made to Generator 1. This
only functions in the automatic mode.
Start generator 2 Gen2 start off load If this contact is closed, a transfer is made to Generator 2. This
only functions in the automatic mode.
Emergency Emergency stop If this NC contact is open, both breakers are opened and alarm
A08 is triggered (the locking properties of A08 have priority).
Generator ready Source 1 Generator 1 ready The closed contact signals that the generator connected to
Source 1 is available for use. If this signal is missing, alarm A13 is
triggered.
Generator ready Source 2 Generator 2 ready The closed contact signals that the generator connected to
Source 2 is available for use. If this signal is missing, alarm A14 is
triggered.