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Summary of Contents for MEMMINGER-IRO MRA 2
- Page 1 MRA 2 Operating Instructions english 027-920-000-01 27.05.09...
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Page 3: Table Of Contents
Fitting the control unit ..............................8 Fitting the capacitor batteries (optional) ........................8 Connecting up the step-down transformer (optional) ....................8 Fitting the MRA 2 motors ............................. 9 Fitting the tensioning device ............................10 Fitting the toothed belts ............................. 10 Fitting the GT 3 console ............................ -
Page 4: Safety
The MRA 2 system is designed for operation with a 3 x 400 V AC power supply. The power supply for the MRA 2 must be taken from the circular knitting machine. The power supply to the MRA 2 must be switched on and off from the main switch of the circular knitting machine. -
Page 5: Description
GT3 console: The GT3 console is used to enter all the where it is used to control the MRA 2 motor. The GT3 parameters needed to install and operate the system. -
Page 6: Installation Options
Installation options Single motor on one diameter ring with one toothed belt Single motors on two different diameter rings with two toothed belts Single motors on two same diameter rings with two toothed belts... -
Page 7: Twin Motor On One Diameter Ring With Two Toothed Belts
Installation options Twin motor on one diameter ring with two toothed belts Twin motors on two different diameter rings with four toothed belts Single motor and twin motors on three different diameter rings with five toothed belts... -
Page 8: Preparing For Installation
Preparing for installation Setting the hollow shaft encoder ratio Before you fit the MRA 2 system you must set the ratio between the one machine revolution and the revolutions of the knitting machine drive shaft. Rotate the machine through one revolution and count... -
Page 9: Assembly
Assembly fitting the hollow shaft encoder Fix the adapter (2) and the torque bracket (5) to the hollow shaft encoder (4). Fit the encoder support (6) to the torque bracket (5). Slide the hollow shaft encoder (4) onto the drive shaft (8). -
Page 10: Fitting The Control Unit
3 x 440 - 585 V, 50/60 Hz 585 V 585 V 585 V The MRA 2 system operates a rated voltage of 400 V AC. 530 V 530 V 530 V At input voltages greater than 400 V AC and up to 585... -
Page 11: Fitting The Mra 2 Motors
(5). Adjust the toothed pulley (2) with the cone clamping element (1) to the same height as the tension roller (4) on the drive shaft (6) of the MRA 2 motor (7). Fix the MRA 2 motors (7) with the motor flange (3) to the feed ring (8) of the machine. -
Page 12: Fitting The Tensioning Device
Do not kink or twist the toothed belts. fitting the GT 3 console Fit the GT 3 console to the motor flange of the MRA 2 motor. The GT 3 console can also be fitted to a bar. -
Page 13: Terminal Connection Diagram
(optional) between the knitting machine motor cable. and the control unit. Electrical connections Connect up the MRA 2 system as shown on the terminal connection diagram. CAuTIOn! The MrA 2 must only be installed and serviced by qualified electricians working in accordance with current electrical engineering practices and regulations. -
Page 14: Operation
Access level 2 for machine setters with password “72280”. Users at this level can configure the encoder, the number of teeth on the MRA 2 motor toothed pulley, the feeder direction of rotation and the unit of measurement (metres or inches) used. -
Page 15: Configuration Menu
Configuration menu Number of teeth on the toothed belt pulley of the MRA 2 motor (1), the default value is 30. Number of hollow shaft encoder revolutions per machine revolution, i.e. the ratio between the machine cylinder and the hollow shaft encoder (2). - Page 16 Operation Feeder type selection list (1). Yarn feed rate per feeder revolution (2). Number of teeth on feeder toothed pulley (3). If a feeder is not on the feeder list (1) you must enter the yarn feed rate per feeder revolution (2) and the number of teeth on the toothed pulley (3) using the touchpad.
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Page 17: Setting The Hollow Shaft Encoder For The Set Yarn Feed Rate
Operation Product-specific default control parameter settings for service personnel. Setting the hollow shaft encoder for the set yarn feed rate Enter the yarn feed rate per machine revolution set before assembly (see the section Setting the hollow shaft encoder ratio). Start the knitting machine. -
Page 18: Fabric Press-Off Rectification
Operation Fabric press-off rectification Start fabric press-off rectification Stop fabric press-off rectification Yarn feed rate reduction factor (1). To modify the reduction factor, enter the password “2810”. Number of machine revolutions for which fabric press-off rectification is valid (2). Number of machine revolutions remaining until fabric press-off rectification is automatically finished (3). -
Page 19: Fault And Status Message Menu
Operation fault and status message menu When a MRA 2 system fault occurs this is indicated immediately on the GT 3 console display. Console menu Software version of GT3 console (1). Modify the unit of measurement (2) (metres or inches). -
Page 20: Technical Data
Yes. Set the parameters correctly. The MRA 2 motor does not run. Check if the MRA 2 motor has any torque. Turn the No. Change the MRA 2 motor or the control unit. motor shaft by hand. -
Page 21: Dimensions
Dimensions MrA 2 motor Ø 14... -
Page 22: Control Unit
Dimensions Control unit... -
Page 23: Gt3 Console
Dimensions GT3 console Hollow shaft encoder Ø30 Ø80 3xM4... -
Page 24: Declaration Of Manufacturer
The manufacturer: MEMMINGER-IRO GmbH Jakob-Mutz-Straße 7 D-72280 Dornstetten, Germany hereby certifies that the following product: MrA 2 conforms to the requirements of the above named directives. The following harmonised standards were used: EN ISO 11111 Textile machinery. Safety requirements. EN ISO 12100... - Page 26 Jakob-Mutz-Straße 7 Internet: www.memminger-iro.de D-72280 DORNSTETTEN © 2006 MEMMINGER-IRO GmbH / D-72277 DORNSTETTEN Nachdruck, auch auszugsweise, nur mit schriftlicher Genehmigung der MEMMINGER-IRO GmbH. Änderungen vorbehalten. Reprint, even in extracts, shall require the written approval of MEMMINGER-IRO GmbH. Subject to modifications.
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