SMT-BD1/i (GB) Winding/unwinding tension control

This manual describes the option "i" of the SMT-BD1 amplifier: Tension control of winding / unwinding systems. The general information about the digital amplifier commissioning are described in the standard SMTBD1 manual. This manual may be used in conjunction with appropriate and referenced drawings pertaining to the various specific models. Maintenance procedures should be attempted only by highly skilled technicians (EN 60 204.1 standard) using proper test equipment. The conformity with the standards and the "CE" approval are only valid if the items are installed according to the recommendations...

TENSION CONTROL OF WINDING/UNWINDING SYSTEMS

CHAPTER 1 - GENERAL DESCRIPTION The tension control for winding/unwinding systems requires the SMT-I3-BD1 daughter board and the X.X 6 EEPROM. In this configuration, the SMT-BD1/i amplifier controls the speed of the motor driving the spool, in order to maintain a constant material tension independently of its line speed and of the spool diameter. The material tension is controlled by the amplifier via a ± 10 V analogue signal ( TM) provided by a tension sensor. The spool diameter measurement (DIAM) is also received by the amplifier as an analogue voltage between 0 V and 10 V. These signals are...

CHAPTER 2 - SPECIFICATIONS 1 - MAIN TECHNICAL DATAS Line speed measurement Differential encoder input A, A/ and B, B/ Max. frequency = 250 kHz Motor / encoder speed ratio (empty spool) LER / MER LER = Line encoder resolution MER = Motor encoder resolution Programmable motor encoder resolution Spool diameter measurement 0 V to 10 V analogue input Resolution: 11 bits (15 bits optional) Low-pass filter: 10 Hz Calibration of the spool diameter sensor Voltage for minimum and maximum diameter: adjustable between 0 V and 10 V Spool diameter ratio = max. diameter / min. diameter Adjustable parameter...

Vref Vmes Perr Selectable ouputs Speed loop Resolver conversion Analogue input Analogue input Serial interface Current loops Current monitor Vector control Fault protections Tension control Resolver oscillator Power fault Encoder input Logic supplies 2 - AMPLIFIER BLOCK DIAGRAM

Limit switch -0 V limit switch ENABLE 0 V ENABLE Torque control CI P mode braking CV0 0 Volt logic input Amplifier fault RESET 0 V RESET input 17 Tension measurement TM+ 16 Tension measurement TM- Diameter measurement DIAM Speed monitor output Current monitor output Positive or negative Positive or negative Positive or negative Positive or negative logic (see standard manual SMT-BD1) logic (see standard manual SMT-BD1) logic (see standard manual SMT-BD1) logic (see standard manual SMT-BD1) logic (see standard manual SMT-BD1) Differential input of material tension measurement between - 10 V and...

1.3 - LOGIC INPUTS /OUTPUTS OF X4 +5V Log+ Same for Idyn and Power Ready SMT-BD1/i Ÿ Chapter 3: Inputs - Outputs

Reserved TER DER 0 V I/O TS1 TS2 JOG+ JOGTDI REMARK Motor encoder output of the marker pulse (5 V, 20 mA) Motor encoder output of the marker pulse Motor encoder output channel A (5 V, 20 mA) Motor encoder output channel A Motor encoder output channel B (5 V, 20 mA) Motor encoder output channel B GND Master encoder input channel A (5 V, consumption 2 mA) Master encoder input channel A Master encoder input channel B (5 V, consumption 2 mA) Master encoder input channel B ± 5 % 300 mA available with jumper 5 V closed, for master encoder supply (if necessary) Reserved Logic output: Tension measurement...

2.3 - LOGIC INPUTS /OUTPUTS OF X2 Function 0V DAC 1 output Speed input command CV Speed signal GT DAC 2 output +/- 10 V, resolution: 8 bit, linearity: 2 % (IDC, Imon, ID, IQ, Vref, Vmon)* +/- 10 V for +/- max. speed +/- 8 V for +/- 14 000 rpm +/- 10 V, resolution: 8 bit, linearity: 2 % (IDC, Imon, ID, IQ, Vref, Vmon)* * See manual "BPCW Options", part "Digital oscilloscope". Linearity = 10 % on logic boards 01612A, 01612B and 01612C. SMT-BD1/i Ÿ Chapter 3: Inputs - Outputs

1 - CONNECTION DIAGRAM1.1 - Connection with the master amplifier SMT-BD1/i MASTER AMPLIFIER Tension measurement cell - 10 V to + 10 V Diameter measurement cell GND Fault RESET SMT-BDl/i • Chapter 4: Connections

1.2 - CONNECTION WITH THE MASTER ENCODER MASTER ENCODER 15 IB Amplifier 5 V jumper closed 2 - MANDATORY WIRING It is mandatory to use a shielded cable for the encoder signals A and B. Cable ends should have a 360° shield connection by means of the metallic X2 connector (refer to Chapter 8, section 6 of the SMT-BD1 standard manual). The amplifier 0 V (X2, pins 10/11) and the encoder or master amplifier 0 V (Gnd) must be connected together. The crossing of the A and B, A and A/ or B and B/ signals on the encoder input changes the motor rotation direction with regard to the rotation direction of...

The specific parameters used for the tension control of winding/unwinding systems are accessible via the Winding/unwinding tension control setup and Winding/unwinding diameter sensor scaling submenus of the Advanced functions menu, in the BPCW software version 2.52 and greater. ENABLE WINDING/UNWINDING CONTROL MAXIMUM SPEED VARIATION (%) TENSION INPUT FILTER (Hz) TENSION SENSOR ACQUISITION (V) TENSION SET POINT 1 (V) TENSION SET POINT 2 (V) TENSION SET POINT LOW (V) TENSION SET POINT RAMP (S) The operation in winding/unwinding tension control is selected by the Enable winding/unwinding control...

The following parameters are accessible in the main window of BPCW. The parameter Maximum speed (rpm) defines the maximum motor rotation speed (for the minimum spool diameter). The adjustment range is between 100 and 14 000 rpm. The function Reverse movement reverses the motor rotation direction with regard to the rotation direction of the material line speed measurement encoder, as shown below. Reverse movement Encoder rotation CW Motor rotation CW FC+ stops the motor Encoder rotation CW Motor rotation CCW FC- stops the motor The Encoder resolution parameter defines the encoder resolution for...