SMT-BD1/j (GB) Winding/unw. accumulator control

This manual describes the option "j" of the SMT-BD1 amplifier: Accumulator control of unwind / rewind 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...

ACCUMULATOR CONTROL OF WINDING/UNWINDING SYSTEMS

CHAPTER 1 - GENERAL DESCRIPTION The accumulator control for winding/unwinding systems requires the SMT-BD1 amplifier to be equipped with the X.X 7 EEPROM version. In this configuration, the SMT-BD1/j amplifier controls the speed of the motor driving the spool according to the material line speed and the spool diameter. The accumulator height is directly proportional to the line speed in order to allow the material storage and restitution during the spool deceleration and acceleration phases. The accumulator height measurement is received by the amplifier as an analog voltage between 0 V and +...

CHAPTER 2 - SPECIFICATIONS 1 - MAIN TECHNICAL DATAS Accumulator height measurement Analog input 0 V to + 10 V or 0 V to - 10 V Resolution: 11 bit as standard (15 bit optional) Low-pass filter with adjustable frequency Spool diameter measurement Analog input 0 V to + 10 V or 0 V to - 10 V Resolution: 11 bit as standard (15 bit optional) Low-pass filter: 1 Hz Spool ratio = max. diameter / min. diameter Adjustable parameter from 1 to 100 Resolution: 1/256 Sampling period: 0,5 ms Auto-tuning at setup Anti-resonance filter Automatic Gains-Spool diameter matching Speed loop bandwidth Adjustable cut-off...

REV REW STOP CI ENABLE RESET Analog input Analog input Speed monitor Speed loop Resolver transformation Current loops Current monitor Serial interface Vector control Logic supplies Fault protections Power fault Resolver oscillator 2 - AMPLIFIER BLOCK DIAGRAM

REV Rotation reversal REW Accumulator rewind Logic input 0 Volt ENABLE ENABLE 0 Volt CI current control STOP spool stop Logic input 0 Volt Amplifier fault RESET RESET input 0 Volt 17 Height measurement CV+ 16 Height measurement CV- 3 Diameter measurement DIAM 15 Analog input 0 Volt 10 Speed monitor output 2 Current monitor output 11 Analog output 0 Volt 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...

2 - SPECIFICATIONS OF THE INPUTS / OUTPUTS 2.1 - ANALOG INPUTS SMT-BD1/j Ÿ Chapter 3: Inputs - Outputs

* See manual "BPCW Options", part "Digital oscilloscope". Linearity = 10 % on logic boards 01612A, 01612B and 01612C. SMT-BD1/j • Chapter 3: Inputs - Outputs

CHAPTER 4 - CONNECTIONS 1 - CONNECTION DIAGRAM X4 Height measurement cell +V GND Diameter measurement cell GND LOG+ LOGV Fault Fault Current monitor Speed monitor

2 - MANDATORY WIRING It is mandatory to use a pair twitsted shielded cable s for the analog signals CV and DIAM. Cable ends must have a 360° shield connection by means of the metallic connectors at both cable ends. Otherwise, make a connection as short as possible only at the end on amplifier side with a 0 V pin of the X4 connector (see SMT-BD1 standard manual). The analog signals (CV and DIAM) must be wired according to the polarities between the sensor cells and the amplifier ( CV+ and DIAM on diff. high of the cells), and the amplifier 0 Volt MUST be connected to the cells 0 Volt by means...

The parameters used for the unwind/rewind control are accessible via the Accumulator control and Diameter adaptive gain submenus of the Advanced functions menu, in the BPCW software version 2.54 and higher. The operation in unwind/rewind accumulator control is selected by the Enable accumulator control function of the Accumulator control parameters submenu of the Advanced functions menu. This mode corresponds to the motor speed control with a P or PI regulator. The motor speed input command is calculated according to the accumulator height measurement and the spool diameter measurement in order...

2 - APPLICATION PARAMETERS The following parameters are accessible in the ANALOG INPUT module of the BPCW software. The parameter Maximum speed (rpm) defines the maximum motor rotation speed (MS) that corresponds to the maximum material line speed value and to the minimum spool diameter value. The adjustment range is between 100 and 14 000 rpm. The Accel/Decel time (s) parameter defines the spool acceleration and deceleration time between 0 and the maximum material line speed value (positive accumulator position). The adjustment range is between 0 and 30 seconds. The function Reverse movement...

The Accumulator sensor value for max. speed (V) defines the voltage value in Volts (ASVM) provided by the accumulator height sensor at maximum material line speed is equal to zero (accumulator active position). The reading range is between 0 V and 10 V. These parameters allow the easy sizing of the accumulator height measurement signal CV as shown below. Motor speed Motor speed Max. speed ASVM Rewind if REW input active Rewind if REW input active 3 - REGULATOR PARAMETERS The speed regulator structure is shown below: KI1 S Vref Vmes The gain parameters are automatically calculated during the AUTO-TUNING...

CHAPTER 6 - COMMISSIONING 1 - CHECKING THE CONFIGURATION Check the amplifier standard configuration as described in Chapter 6 of the standard SMT-BD1 manual. Check for the version of the firmware memory that must be X.X7. 2 - APPLYING POWER Turn on the amplifier as described in Chapter 6 of the standard SMT-BD1 manual. 3 - STARTING AND ADJUSTMENT Start and adjust the amplifier by means of the BPCW software,as described in Chapter 6 of the standard SMTBD1 manual. 3.1 - ADJUSTMENTS WITH EMPTY SPOOL Enter the maximum motor speed corresponding to the empty spool in the box Rated speed of the Analog...