Kongsberg ACS500, Instruction Manual

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Operational procedures
System status
Unknown
– Read System Status, see Reading the system status information on page 48.
OK
– Normal operation.
Telemetry failed, last telemetry command was not confirmed OK from the SCU –
Check the connection to the transducer and repeat the telemetry function. See
Checking
communication between the Acoustic Command Unit and the Subsea Control Unit on
page 48.
VALVE ERROR
(Red background)
Caution
The SCU is DISARMED, Other Valve(s) is/are still Active (Open).
– Check Valve readbacks in the
More Status
menu.
Caution
A new ARM Command may trigger an active valve directly! (Check for
sensor failure?!)
Analogue sensor error
, detected SCU error bit message regarding Analogue Sensor
connection – Check the SCU/BOP Interface and Sensor.
Current < low limit
, valve operated OK, measured current lower than defined limit. –
Caution
Repeat readings. Check Sensor and configuration values. In More Status,
try to read last Solenoid Currents.
Current > high limit
, valve operated OK, measured current higher than defined limit. –
Caution
Repeat readings. Check Sensor and configuration values. In More Status,
try to read last Solenoid Currents.
Sequence aborted
, ongoing sequence of valve operations in the SCU are confirmed
aborted
– Read System Status in order to check valve status form BOP. Repeat the
sequence if needed.
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