User Manual

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Linear Motion and

Assembly Technologies ServicePneumaticsHydraulics

Electric Drives

and Controls

DRC Travel Drive Control

Application Software

Electronic travel drive control for

travel management of hydraulic drives

RE 95 320/06.06

replaces: 02.04

Features

The electronic travel drive control is an application-speciﬁ c,

adaptable software package for travel management of hydrau-

lic drives. With its integrated reversing functions and hydro-

static braking, it allows soft start-up, acceleration and reversing

operations.

Variants DRCD and DRCE also include functions for speed

limiting, diesel-engine overheating protection (via CAN), diesel-

engine overspeed protection, automotive travel, load limiting

control, CAN-bus interface (SAE-J 1939) and three parameter-

izable travel modes which can be selected by the driver.

The integrated, adjustable inch function enables inﬁ nite limiting

of the pump control.

Variants A, B and C:

– Travel drives with simple pump control in combination with

ﬁ xed displacement motors

Variants D and E:

– Complex travel drives with pump and motor control

The DRC travel drive control is designed for

operation with Rexroth pumps A4VG and A10VG with electric

control (proportional solenoid).

The software can be parameterized by the user.

Diagnostics and parameterization are possible with the BO-

DEM PC software.

The control offers diagnostic capabilities via the CAN bus.

Contents

Ordering code 2

Variant overview 3

Variants DRCA through DRCC 4

Functional description 4

Parameterization and diagnostics 6

DRCA connection diagram 7

DRCB connection diagram 8

DRCC connection diagram 9

Required components 10

Variants DRCD and DRCE 11

Functional description 12

Parameterization and diagnostics 15

DRCD connection diagrams 16

DRCE connection diagrams 18

Required components 20

Safety instructions 20

Technical data sheet

Summary of content (20 pages)

PAGE 1
Electric Drives and Controls Hydraulics Linear Motion and Assembly Technologies Pneumatics Service DRC Travel Drive Control Application Software RE 95 320/06.06 replaces: 02.
PAGE 2
/20 Bosch Rexroth AG DRC Travel Drive Control RE 95 320/06.
PAGE 3
RE 95 320/06.
PAGE 4
/20 Bosch Rexroth AG DRC Travel Drive Control Variants DRCA, DRCB and DRCC • Variant A: Joystick The electronic drive control is designed to actuate a variable pump in a closed hydraulic circuit. • Variant B: Acceleration pedal If the drive is controlled via a joystick, the setpoint and travel direction are speciﬁed via this lever. The potentiometer of the joystick is monitored for wire break and short circuit.
PAGE 5
RE 95 320/06.06 Bosch Rexroth AG DRC Travel Drive Control 5/20 Inch function Start release A second potentiometer can be connected for inﬁnitely variable setpoint limitation. Start release is used to prevent the drive from starting unintentionally. For variants A and B, the inching potentiometer is monitored for wire break and short circuit. For start release, a digital switched output is used. Its signal must be integrated into the start control of the diesel engine.
PAGE 6
/20 Bosch Rexroth AG DRC Travel Drive Control RE 95 320/06.06 Important features Parameterization and diagnostics • Three different possibilities for setpoint speciﬁcation are available through the variants The parameters which need to be set in order to commission the DRC travel drive control can be easily changed using the BODEM PC software.
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RE 95 320/06.
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/20 Bosch Rexroth AG DRC Travel Drive Control RE 95 320/06.
PAGE 9
RE 95 320/06.06 Bosch Rexroth AG DRC Travel Drive Control 9/20 DRCC connection diagram Ignition lock with starter non-repeat unit " " Supply voltage of the electronics Supply of the power outputs Sensor supply voltage 7 " Pump forwards # Pump backwards " Start release # Special function Ext. setpoint speciﬁcation 7 Voltage inputs Ext.
PAGE 10
/20 Bosch Rexroth AG Required components The following electronic components are required: • RC2-2/20 controller with 52-pin mating connector (RE 95200) • Software AS/DRCA, AS/DRCB or AS/DRCC • HG104 joystick (RE 95041) • Optional: IDR speed sensor (RE 95130) with mating connector • Optional: acceleration and inch pedals • Optional: time-ramp switch for the acceleration behavior • Optional: direction switch The following hydraulic components are required: • Variable pump with electro-proportional contro
PAGE 11
RE 95 320/06.06 Bosch Rexroth AG DRC Travel Drive Control Variants DRCD and DRCE Hydraulic system The electronic travel drive control is designed to actuate a variable pump in a closed hydraulic circuit with electric, directcontrolled DE / EV control (DRCD) or electric, proportional EP control (DRCE) and a variable motor with electric, proportional EP control. The following Rexroth hydraulic pumps are supported: DRCD: • A4VG.DE, A4VG.EV (see catalog RE 92003) • A10VG.
PAGE 12
/20 Bosch Rexroth AG DRC Travel Drive Control RE 95 320/06.06 Functional description Inch function Automotive travel A potentiometer can be used to inﬁnitely limit the pump and, therefore, the ﬂow from the pump. Thus, the vehicle speed can be decoupled from the diesel engine speed. The hydrostatic drive with travel drive control facilitates comfortable driving, such as that experienced in an automobile. The variable pump is controlled by the deﬂection of the acceleration pedal.
PAGE 13
Bosch Rexroth AG DRC Travel Drive Control RE 95 320/06.06 Travel behavior Travel behavior is controlled by the following variables. • The travel mode ("soft", "medium", "hard") is deﬁned with one switch and two digital inputs. This determines, among other properties, how quickly the control of the proportional outputs is changed. • The setpoint value for the pump and motor is speciﬁed by the acceleration pedal and the teach curve. The direction is speciﬁed by the direction switch.
PAGE 14
/20 Bosch Rexroth AG DRC Travel Drive Control RE 95 320/06.06 Reversing operation Overheating protection Travel direction change (reversing) is performed via the direction switch. The vehicle is decelerated and then reaccelerated in the opposite direction. The reaction behavior can be speciﬁed in parameters. Requirement for this function is a diesel engine with a CANbus interface and an available temperature signal. The temperature of the diesel engine is transmitted via the CAN bus.
PAGE 15
RE 95 320/06.06 DRC Travel Drive Control Bosch Rexroth AG 15/20 Important features Parameterization and diagnostics • Automotive travel The parameters which need to be set in order to commission the DRC travel drive control can be easily changed using the BODEM PC software.
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/20 Bosch Rexroth AG DRC Travel Drive Control RE 95 320/06.
PAGE 17
RE 95 320/06.06 Bosch Rexroth AG DRC Travel Drive Control DRCD connection diagram Control via angle sensors 1A3) Ignition lock with starter non-repeat unit Emergency off 13 1A Outputs on 15A INH 41 42 Supply voltage of the electronics 1 27 Supply of the power outputs +12 V/+24 V 2 28 44 43 2 Teach function 3 18 17 WS 1 1 – 4 6 5+ 1 – Inch pedal WS 1 36 35 38 47 46 49 8 4 6 20 +5V 5) +5V 5) Voltage inputs 5+ Accel.
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/20 Bosch Rexroth AG DRC Travel Drive Control RE 95 320/06.
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RE 95 320/06.06 Bosch Rexroth AG DRC Travel Drive Control DRCE connection diagram Control via angle sensors 1A3) Ignition lock with starter non-repeat unit Emergency off 13 1A Outputs on 15A INH 41 42 Supply voltage of the electronics 1 27 Supply of the power outputs +12 V/+24 V 2 28 44 43 2 Teach function 3 18 17 WS 1 1 – 4 6 5+ 1 – Inch pedal WS 1 36 35 38 47 46 49 8 4 6 20 +5V 5) +5V 5) Voltage inputs 5+ Accel.
PAGE 20
/20 Bosch Rexroth AG Required components The following electronic components are required: • RC4-4 controller with 52-pin mating connector (RE 95200) and installed AS/DRCD or DRCE software • Travel direction switch • Selector switch for travel modes • Speed sensor for recording the vehicle speed (can be integrated in the hydraulic motor) • Acceleration pedal with angle sensor and mating connector (alternately via CAN) • Inch pedal with angle sensor and mating connector • Optional: error lamp • Multi-cir