User Manual

ManualsBrandsBosch Rexroth Group ManualsOtherApplication Software Fan Control AFC20

Table Of Contents

Linear Motion and

Assembly Technologies ServicePneumaticsHydraulics

Electric Drives

and Controls

Application Software

Fan Control AFC20

Electronic fan control for hydrostatic fan drives,

Version 20

RE 95360/06.08 1/8

Replaces: 07.05

Features

– The AFC electronic fan control is an easily adjustable software

package for control of hydrostatic fan drives.

– The electronic control can control up to two fan drives with

setpoint speciﬁ cation.

– Status-dependent fan control via digital inputs

– CAN bus communication is supported.

– Improved control quality reduces energy consumption, noise

emission, fuel consumption and exhaust values compared with

conventional solutions.

–

Parameterizable change of direction for fan self cleaning.

– The AFC20 fan control is conﬁ gured for up to two A10VO

variable pumps with ED electrohydraulic pressure control and

an AZM ﬁ xed motor.

A ﬁ xed pump with a ﬁ xed motor is also possible.

– Diagnostics and parameter settings are performed with

the BODAS-service PC software.

– The outputs are monitored for wire breakage and

short circuits.

Table of Contents

Ordering Code 2

Method of Operation 2

Function 4

Connection Diagram 6

Parameter Settings and Diagnostics 7

Components Required 7

Safety Instructions 8

Data Sheet

Summary of content (8 pages)

PAGE 1
Electric Drives and Controls Hydraulics Linear Motion and Assembly Technologies Pneumatics Application Software Fan Control AFC20 Service RE 95360/06.08 Replaces: 07.
PAGE 2
/8 Bosch Rexroth AG Fan Control AFC Ordering Code AS/ AFC 20 Type Application Software AS/ Software Fan Control RE 95360/06.08 Order Information The AFC20 application software must only be used with the RC2-2/21 control unit and other add-on components (see page 6). When placing an order, the hardware and software ordering codes should be linked by a "+".
PAGE 3
RE 95360/06.08 Bosch Rexroth AG Fan Control AFC Hydraulic concept B • One or two AZP ﬁxed pumps, each in conjunction with an AZMF ﬁxed motor with pressure-relief valve and fan (see illustration below).
PAGE 4
/8 Bosch Rexroth AG Function The fan control controls up to two fans independently of each other. For each fan, four temperature inputs and four digital inputs are monitored separately. Fan Control AFC RE 95360/06.08 Variant 1: Reversing via 4/3-directional valve DSM speed sensor The illustrations on pages 2 and 3 show the control system for one fan with four sensors and four digital inputs. The instructions for a single fan are described below. The second fan operates in the same way.
PAGE 5
RE 95360/06.08 Bosch Rexroth AG Fan Control AFC Digital Output Important Features In addition to controlling the pumps, the fan control can also be used to control a digital output. This is done by comparing the temperature values measured with the sensors with the set switching thresholds and the calculating the switching signal. • Up to four temperature sensors • If the measured value falls below the lower temperature threshold, the digital output is set to 0.
PAGE 6
/8 Bosch Rexroth AG Fan Control AFC RE 95360/06.
PAGE 7
RE 95360/06.08 Bosch Rexroth AG Fan Control AFC Parameter Settings and Diagnostics The parameters to be set when commissioning the AFC20 fan control can easily be adjusted using the BODAS-service PC software.
PAGE 8
/8 Bosch Rexroth AG AFC Fan Control RE 95360/06.08 Safety Instructions • The suggested circuits do not imply any technical liability for the system on the part of Rexroth. • The lines used for speed sensors are to be shielded. The shield must be connected to the electronics on one side or to the machine or vehicle ground via a low-resistance connection. • Cables to the electronics must not be routed close to other power-conducting lines in the machine or vehicle.