Simrad AP50 Installation Manual download pdf (Page 96)

Advanced Settings

20222469 / B 87

When operating in “Continuous” mode, the thruster gain

setting determines the power from the thruster versus heading

error. For higher values, the power increases with the same error

signal. If the vessel tends to oscillate around set heading, the

value should be decreased. If the vessel has a slow approach to

set heading, the value should be increased.

When operating in “Adaptive on/off” mode, the setting

determines the fixed power from the thruster. Higher value gives

more power. Some thrusters may be so powerful that even the

shortest command makes the vessel to overshoot, especially at

low setting of Thruster sens. If so the Thruster gain must be

reduced. If the power is too low for the vessel to regain heading

within reasonable time, the setting should be increased.

Range: 0.05 to 2.00

Default: 1 for Continuous thrusters

2 for Adaptive on/off operation

(Ref. Thruster Drive Setting, page 88)

Minimum thrust

(Only applicable for Continuous and Danfoss thrusters)

The Minimum thrust determines the amount of power (in % of

maximum control signal) that is applied as "first command

signal". (Refer to page 66)

Range: 0 to 50% in 1% increments.

Default: 0%.

Thruster hyst

(Only applicable for Continuous and Danfoss thrusters)

When applying a command signal to a proportional valve, a

certain amount of deadband may occur, dependant on the

directional change of the command. Therefore, a certain “extra”

menu-adjustable command signal is generated and either added

or subtracted to the command signal in order to compensate for

the deadband. Hence the command signal gives the required

power without the “loss of deadband signal”.

Range: 0 to 10% in 1% increments.

Default: 0%.

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Simrad AP50 Installation Manual Page 96