User Manual

Bosch Rexroth AG
Open and Closed Loop Speed Control SPC RE 95300/12.07
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Figure 3: How the SPCA open loop speed control works
Important parameters
• Diesel engine data (actual speed via sensor or CAN bus,
number of teeth on the starter gear ring)
• Drive lever or potentiometer for the set speed of the drive
• Confi guration (acceleration behavior)
• Minimum and maximum solenoid current for pump forwards
and backwards
• Use of the CAN bus (yes/no)
Parameter Settings and Diagnostics
The parameters to be set for commissioning the SPCA open
loop speed control are easy to adjust with the BODAS service
PC software.
For diagnostics and troubleshooting, you can use BODAS
service to display the most important process variables and
error messages.
Required Components
The following electronic components are required:
• RC2-2/21 controller with mating connector (RE 95201)
• Software: AS/SPCA, Version 20
• Drive lever HG104GF/11
• Safety switch
The following additional electronic components can be used:
• IDR speed sensor (RE 95130) with mating connector for
diesel engines without a CAN bus interface.
• Potentiometer for setpoint specifi cation (alternative to the
drive lever)
• Switch for toggling between joysticks
• Switch for turning speed control on and off
• Direction switches
• Error lamp for indicating error states
The following hydraulic components are required:
• Variable pump with corresponding control device
A4VG…EP (RE 92003) or
A10VG…EP (RE 92750) or
A11VO…EP (RE 92500) or
A7VO…EP (RE 92202) or
KVA…EP (RE 92250)
• Fixed motors
A2FM (RE 91001) or
A2FE (RE 91008) or
A4FM (RE 91120) or
A10FM (RE 91172) or
MCR (RE 15205 … 15209)
The following are items required for commissioning and
service:
• BODAS service PC software (RE 95086)
• BODAS service connection cable (RE 95086)
• Diagnostics socket (RE 95086)
Diesel engine speed
Joystick 1
Joystick 2
Switch between
joysticks
Direction switch forwards
Direction switch backwards
Open loop speed control on/off
Safety switch (also switches off RC)
Setpoint
specifi cation
Direction of
rotation
Time ramps
Correction
calculation
Pump
control
Pump
Safety switch