Danfoss VACON 3000 Application Manual page 315

VACON® 3000
Application Guide
Pre-start conditions = TRUE
Precharge permissive = TRUE
PowerOnReq = FALSE
PowerOnReq = FALSE
PowerOnReq = FALSE
PowerOnReq = FALSE
PowerOnReq = FALSE
Illustration 55: Power On State Diagram
Danfoss A/S © 2021.09
(2) INITIALIZE
- Initialize checks
- Reset outputs, open precharge (KPC),
open main breaker (MX)
AND
(3) READY
PowerOnReq (I/O, FB) = TRUE
(4) COOLING
- Start HX, internal cooling
CoolingSystemOK = TRUE
(5) CHARGING
- Close precharge contactor
MxLatch = TRUE
MxPermissive = TRUE
(6) CONTACTOR_CLOSE
- Close main contactor/breaker
MX Closed = TRUE
(7) STABILIZE
Precharge permissive = FALSE
(8) OPERATIONAL
- Open precharge contactor
Reset Fault
- Reset outputs
- Open precharge contactor
- Open main contactor/Breaker
Pre-start conditions = FALSE
FW_PccKpc permissive = FALSE
Pre-start conditions = FALSE
CoolingOKTimeout = TRUE, F1725
Precharge permissive = FALSE
CoolingSystemOK = FALSE, F1724
Pre-start conditions = FALSE
KPC Feedback timeout = TRUE, F1726
AND
Pre-start conditions = FALSE
CoolingSystemOK = FALSE, F1724
MxPermissive = FALSE, F1728
Pre-start conditions = FALSE
CoolingSystemOK = FALSE, F1724
MxPermissive = FALSE, F1728
MX Closed = FALSE
Pre-start conditions = FALSE
CoolingSystemOK = FALSE, F1724
MxPermissive = FALSE, F1728
MX Closed = FALSE
AB319735759636en-000101 / DPD01822 | 315
Precharge
(1) FAIL
OR
OR
OR
OR
OR
OR