【正文】 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 entered on the amplifier mand connector X4. The material line speed is measured by an encoder which differential signals A, /A and B, /B in quartered are received on the amplifier mand connector X2. The system structure is described below. CHAPTER 2 SPECIFICATIONS 1MAIN 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 Max. 8 192 ppr up to 900 rpm Max. 4 096 ppr up to 3 600 rpm Max. 1 024 ppr up to 14 000 rpm Spool diameter measurement 0 V to 10 V analogue input Resolution: 11 bits (15 bits optional) 16 Lowpass 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 from 1 to 100 Resolution = P or PI speed regulator Sampling period: 0, 5 ms Antiresonance filter Autotuning at setup Automatic GainsSpool diameter matching Speed loop bandwidth Adjustable cutoff frequency: 50, 75 or 100 Hz Material tension measurement Analogue input: 10 V to + 10 V Resolution: 12 bits (16 bits optional) Adjustable frequency lowpass filter Material tension regulator PID Sampling period: 0, 5 ms Adjustable digital gains Adjustable tension ramping Logic inputs CV0: Spool stop TDI: Tension regulator disabling JOG+: Motor rotation direction + JOG: Motor rotation direction TS1: Tension reference selection (1 of 3) TS2: Tension reference selection (1 of 3) Logic outputs DER: Diameter measurement error TER: Tension measurement error 2AMPLIFIER BLOCK DIAGRAM 17 CHAPTER 3 INPUTS OUTPUTS 1X4 COMMAND CONNECTOR ALLOCATION 18 INPUTS OF X4 INPUTS/OUTPUTS OF X4 19 2X2 COMMAND CONNECTOR INS ALLOCATION 20 ENCODER INPUT INPUTS/OUTPUTS OF X2 3TEST CONNECTOR 21 * See manual BPCW Options, part Digital oscilloscope. Linearity = 10 % on logic boards 01612A, 01612B and 01612C. CHAPTER 4CONNECTIONS 1CONNECTION DIAGRAM WITH THE MASTER AMPLIFIER WITH THE MASTER ENCODER 22 2MANDATORY 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 SMTBD1 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 encoder or of the master motor. It is necessary to use a twisted and shielded cable for the analogue signals TM and DIAM. Both cable ends must have a 360 shield connection by means of the metal connectors. The analogue signals TM and DIAM must be wired according to the polarities between the sensor cells and the amplifier (TM+ and DIAM on diff. high of the cells), and the amplifier 0 V MUST be connected to the cells 0 V by means of a cable (pins 15 and 16 must be connected together on the X4 connector at the amplifier end). CHAPTER 5ADJUSTABLE PARAMETERS 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 and greater. 23 1OPERATION MODE The operation in winding/unwinding tension control is selected by the Enable winding/unwinding control function in the Winding/unwinding tension control parameters submenu of the advanced functions menu. This mode corresponds to speed control of the motor that drives the spool, in order to maintain a constant Material tension independently from its line speed and from the spool diameter. The motor speed reference is Then calculated according to the material line speed, the spool diameter measurement and the material tension Measurement. 2APPLICATION PARAMETERS The following parameters are accessible in the main window of BPCW. 24 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 Reverse movement Encoder rotation CW Motor rotation CCW FC stops the motor The Encoder resolution parameter defines the encoder resolution for one revolution of the slave motor. This parameter allows defining the ratio between the motor speed and the speed of the material line speed Measurement encoder. The limit value of this parameter according to the maximum motor speed (Maximum speed) is indicated in the chart below: The parameters allowing the sizing of the spool diameter sensor are accessible via t