BT RRE160 - Page 55

Functions and parameters
Operation and connection sequences
Publication No. Date Valid from serial number T-code
261828-040 2008-08-21 6051502 815, 816
© BT Repair Manual RRE140/160/180/200/250 4 – 37
Event: 9. Steering
Previous event 3. Basic control criteria
Action(s) The steering wheel is rotated taking effect on the following inputs:
– A1-X504:13 “STEER SENSOR 1 PULSE A”
– A1-X504:4 “STEER SENSOR 1 PULSE B”
– A1-X504:11 “STEER SENSOR 2 PULSE A”
– A1-X504:2 “STEER SENSOR 2 PULSE B”
Contributing factors –
Resulting conditions A telegram is sent via the CAN bus to the steering servo electronics.
The steering servo motor rotates the drive unit so that its new position
corresponds to the position of the steering wheel.
Event: 10. Reach carriage operation: Out
Previous event 3. Basic control criteria.
Action(s) The control for the reach carriage [B21] is moved away from the opera-
tor, and input A1-X505:11 increases from approximately 2.6 V to
approximately 4.7 V at the end position of the control.
Contributing factors –
Resulting conditions The pump motor is supplied with three-phase voltage from the transis-
tor regulator [T2].
Output A5:OUT.(PWM) REACH OUT lowers the voltage
Current flows through the proportional valve [Q7]
The proportional valve [Q7] is opened in proportion to the current that
flows through.
Event: 11. Reach carriage operation: In
Previous event 3. Basic control criteria.
Action(s) The control for the reach carriage [B21] is moved towards the operator
and input A1-X505:11 is reduced from approximately 2.6 V to approxi
-
mately 0.6 V at the end position of the control.
Contributing factors –
Resulting conditions The pump motor is supplied with three-phase voltage from the transis-
tor regulator [T2].
Output A5:OUT.(PWM) REACH IN lowers the voltage
Current flows through the proportional valve [Q6]
The proportional valve [Q6] is opened in proportion to the current that
flows through.