Sytronix Solutions with IndraDrive on Press Brakes. Technical Information. Contents. RE Edition:

Transcription

1 Sytronix Solutions with IndraDrive on Press Brakes Technical Information RE Edition: Contents Introduction 2 Hydraulic Circuit Diagram 2 Components 3 Electrical Equipment Block Diagram 3 Dimensioning Data 4 Parameterization 5 Drive Optimization 6 Possible Error Messages 7 Velocity Control Loop Monitoring 8 RE , Edition: , Bosch Rexroth AG

2 2/8 Technical Information Sytronix Solutions with IndraDrive on Press Brakes Introduction Hydraulic press brakes, which are used for precision sheet metal forming by means of defined bending, are increasingly being equipped with variable speed drives in order to save energy. The solution for this from Bosch Rexroth is called Sytronix. Hydraulic Circuit Diagram of a Press Brake M2.1 A B M2.2 X2.1 X2.2 M1.1 M1.2 X1.1 X1.2 M1A P1A P1B M1B T Y M2A P2A P2B M2B Example of a hydraulic circuit diagram for press brakes Bosch Rexroth AG, RE , Edition:

3 Sytronix Solutions with IndraDrive on Press Brakes Technical Information 3/8 Required Components for a Solution Sytronix Synchronous servo motor Controller Axial piston pump The system consists of an axial piston pump optimized for variable-speed operation, a synchronous servo motor and servo controllers together with the appropriate accessories. For the operation of the servo motor the following components are required: Drive controller HCS or HMS (with HMS a power supply is still required) with analogue control unit Fusing Transformer (optional) Line filter (optional) Choke Mains contactor Power and feedback cables Servo motor Example of electrical Equipment Quantity Name Type Explanation 1 Axis 1 MSK071E-0300-NN-S1-UG0-NNNN Motor 1 Axis 1 INDRADRIVE HCS02 Drive controller: 1 Axis 1 HCS02.1E-W0054-A-03-NNNN Power section 1 Axis 1 CSB01.1N-AN-ENS-NNN-NN-S-NN-FW Control part 1 Axis 1 FWA-INDRV*-MPB-08VRS-D5-1-NNN-NN Firmware 1 Axis 1 HAS CN Accessory 1 Axis 1 HAS NNN-NN Accessory 1 Axis 1 HNL01.1E-0600-N0032-A-500-NNNN Mains choke 1 Axis 1 NFD Mains filter 1 Axis 1 RKL4307/005,0 Power cable 1 Axis 1 RKG4200/005,0 Encoder cable 1 Axis 2 MSK071E-0300-NN-S1-UG0-NNNN Motor 1 Axis 2 INDRADRIVE HMS02 Drive controller: 1 Axis 2 HMS02.1E-W0054-A-07-NNNN Power section 1 Axis 2 CSB01.1N-AN-ENS-NNN-NN-S-NN-FW Control part 1 Axis 2 FWA-INDRV*-MPB-08VRS-D5-1-NNN-NN Firmware 1 Axis 2 HAS NNN-NN Accessory 1 Axis 2 RKL4307/005,0 Power cable 1 Axis 2 RKG4200/005,0 Encoder cable Block Diagram of the Electrical Components Mains HCS DST HNF HNL Contactor Cable Motor RE , Edition: , Bosch Rexroth AG

4 4/8 Technical Information Sytronix Solutions with IndraDrive on Press Brakes Required Customer Data for Dimensioning Position / distance Fast approach Muting position Slow closing Clamping position Pressing Decompression Pressure holding Return slow Return fast Time Pressing kn Number of cylinders 1 or 2 Cylinder diameter piston side Diameter of the piston rod Weight of beam kg Fast approach Stroke /s Stroke muting position to clamp position 6 acc. to EN13857 /s Bending stroke /s Pressure holding in BDG s Decompression s Return - slow Stroke /s Return - fast Stroke /s Idle - long stroke (e.g. insert material manually) s Idle - short stroke (e.g. insert material automatically) s The case with shortest pause time is important. This case requires the highest continuous power rating of the electrical drive. For the design of the drive a Bosch Rexroth software tool is available on enquiry to Bosch Rexroth Lohr am Main. Bosch Rexroth AG, RE , Edition:

5 Sytronix Solutions with IndraDrive on Press Brakes Technical Information 5/8 Parameterization of the IndraDrive Control Unit Press brakes often have a main controller (Cybelec, Delem, etc.) which outputs analogue set point values for speed and torque to the IndraDrive. Therefore the following control modules are required: CSH01.1C-NN-ENS-NNN-MA1-NN-S-NN-FW or CSB01.1N-AN-ENS-NNN-NN-S-NN-FW The drive is therefore fundamentally used in the operating mode speed control. The positioning of the drive is carried out by the main controller which also evaluates the external measuring systems. An internal PLC-program in the drive controller (MLD) is not required in this application and type of control because the main control calculates the analogue set point values and outputs the correct values. A conversion of the set point value into pressure and flow rate is not necessary. Processing and assignment of the analogue voltage at the analogue inputs of the IndraDrive is necessary so that the set point value causes the required rotary speed or output torque of the drive. For the required rotary speed the analogue input 1 is allocated to the speed set point S In order to limit the output torque via an analogue voltage the analogue input 2 is allocated to the output torque limit value S Selected mode Review of the analog input for driving speed Processing of the analog input for the torque limit RE , Edition: , Bosch Rexroth AG

6 6/8 Technical Information Sytronix Solutions with IndraDrive on Press Brakes Drive Optimization Dependent upon system design of the press brake, an optimization of the drive may be necessary. For this the parameters of the rotary speed control loop and current* control loop can be adjusted. A smoothing of the rotary speed controller can also be integrated. Attention: Changes to the current controller parameters may only be carried out after consultation with Bosch Rexroth. Drive parameter optimization Complete cycle Torque curve during the pressing process Bosch Rexroth AG, RE , Edition:

7 Sytronix Solutions with IndraDrive on Press Brakes Technical Information 7/8 Possible Error Messages (F8078) In this application it is possible that the drive cannot follow the required speed due to reduction of the output torque or due to hydraulic pressures. It is also possible that hydraulic pressure causes movement of the drive when the required speed is zero. In these cases the error message F8078 (error in rotary speed control loop) will be displayed. Attention: In such cases the hydraulic anti-cavitation pipe work and anti-cavitation valve should be checked. It is probable that the valve is not being switched correctly. The switching of the valve is normally carried out by the safety PLC or the CNC. This error message should be disabled in such applications by means of the parameter P with bit 1 = 1 P Axis controller configuration: Output torque required value in S92 approx. 10% Required rotary speed in S36 approx. 340 RPM Actual rotary speed in S40 approx. 0 RPM RE , Edition: , Bosch Rexroth AG

8 8/8 Technical Information Sytronix Solutions with IndraDrive on Press Brakes Velocity Control Loop Monitoring Deactivation of the velocity control loop monitoring Bosch Rexroth AG Hydraulics Zum Eisengießer Lohr am Main, Germany Phone +49 (0) / 18-0 documentation@boschrexroth.de This document, as well as the data, specifications and other information set forth in it, are the exclusive property of Bosch Rexroth AG. It may not be reproduced or given to third parties without its consent. The data specified above only serve to describe the product. No statements concerning a certain condition or suitability for a certain application can be derived from our information. The information given does not release the user from the obligation of own judgment and verification. It must be remembered that our products are subject to a natural process of wear and aging. Bosch Rexroth AG, RE , Edition: