Kongsberg ACS500
Valves used in the sequence
Ordinary defined single valve operations may be put together to a predefined sequence of
valve operation in order to perform a controlled shutdown of a system.
This specific sequence must be defined by the customer and predefined in the ACS500
system parameter set.
Sequence operation and timing
The auto shutdown sensors (minimum 1, maximum 3 sensors) are connected to the two
available SCU’s. It is possible to define different criteria for auto shutdown triggering
from the sensors. Both the SCU’s will receive the same triggering signal simultaneously.
In order to control the valve operation, by sending current to a specific solenoid only
from one SCU at a time. The programmed sequence operation may then be performed
as illustrated below.
The sequence in the example with 4 single valve operations will be executed directly
after triggering from the sensors from SCU 1. The SCU 2 will perform a defined delay
before starting the ASHD valve sequence, trying to avoid that the SCU's are sending
current to one solenoid at the same time.
•
When an ASHD operation is performed, the main priority is subsea at the SCU's in
order to control the valve package.
• If an ACU operator tries to control and communicate with the SCU in ASHD time
slot, a possible status reply from a SCU will only inform the operator that an ASHD
sequence is performing or has occurred.
It will be possible to read a specific ASHD status info telegram when the ASHD
sequence is finished. An ASHD sequence will be executed once, and then it is required
to enable the function from the ACU if it is to be run a second time.
Enabling/Disabling Auto Shutdown
The ASHD system must be configured by certified KM personnel.
See your registration form for your ASHD specification.
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397128/C
Summary of Contents for ACS500
Page 1: ...INSTRUCTION MANUAL ACS500 Acoustic Control System Gisma testport system...
Page 2: ......
Page 15: ...ACS500 System with interface cables 397128 C 13...
Page 38: ...Kongsberg ACS500 ACU Computer buttons on page 37 User interface on page 38 36 397128 C...
Page 71: ...Simulation and test 397128 C 69...
Page 113: ...Drawing file Dunking transducer unit outline dimensions 397128 C 111...
Page 114: ...Kongsberg ACS500 Acoustic Command Unit outline dimensions 112 397128 C...
Page 115: ...Drawing file Subsea Control Unit outline dimensions 397128 C 113...
Page 116: ...Kongsberg ACS500 Subsea Control Unit arrangement 114 397128 C...
Page 117: ...Drawing file Subsea Control Unit bracket 397128 C 115...
Page 118: ...Kongsberg ACS500 TDR30V 34GT Subsea transducer outline dimensions 116 397128 C...
Page 119: ...Drawing file External quad battery unit for SCU outline dimensions 397128 C 117...
Page 120: ...Kongsberg ACS500 Simulator outline dimensions 118 397128 C...
Page 138: ...Kongsberg ACS500 Appendix A Type approval certificate 136 397128 C...
Page 139: ...Appendix A Type approval certificate 397128 C 137...
Page 140: ...Kongsberg ACS500 138 397128 C...
Page 141: ...Appendix A Type approval certificate 397128 C 139...
Page 142: ...Kongsberg ACS500 140 397128 C...
Page 148: ...2016 Kongsberg Maritime...
