33 40303A00 Operating instructions 1. Installation and connection
Contents
1. Seite 2 33 40303A00 Operating instructions 5 3 Parameter administration Fig 1 shows the parameter administration setup The two parameter sets with which the current controller can be initialized are stored in the EEPROM Changeover between the two parameter sets is done via the Paramet menu When parameter set 2 is enabled the cursor will blink Parameters cannot be changed unless the corresponding parameter set has been enabled Apart from the setpoint signal setpoint dead range maximum current minimum current ramp up time and ramp down time it is also possible for the dither amplitude and dither frequency to be changed when parameter set 2 is selected The dither parameters are also included in parameter set 1 However they cannot be changed and they are not enabled when the current controller is delivered by Kendrion Binder Magnete These two parameters should only be configured by suitably qualified personnel The Paramet menu allows the entire parameter set to be changed and the values included in set 1 to be copied to set 2 and vice versa see section 4 2 This menu can also be used to assign a delete status to the parameter set see section 4 4 By pressing both buttons at the same time the original parameters stored in the EEPROM are overwritten with the new parameters and the new parameters are transmitted to the current controller Controller Start up Working copy O2. Select the Inputoff menu Press both buttons at the same time Select the desired setpoint dead range Press both buttons at the same time to save the selected setpoint dead range 4 1 D Digital current controller for installation on mounting rails Note The setpoint dead range parameter causes the setpoint signal to be ignored up to the selected threshold value If a minimum current has been selected this current is not set until the threshold value has been reached To select the maximum current Select the Imax menu Press both buttons at the same time Select the desired maximum current Press both buttons at the same time to save the selected maximum current Attention If the setpoint signal is not 0 and the current controller has been enabled on the ENABLE input the controller starts to tune the setpoint To select the minimum current Select the Imin menu Press both buttons at the same time Select the desired minimum current Press both buttons at the same time to save the selected minimum current Note The selected maximum current setting cannot be lower than the minimum current Likewise the selected minimum current setting cannot be higher than the maximum current e To select the ramp up time Select the Ton menu Press both buttons at the same time Select the desired ramp up time Press both buttons at the same time to save the selected ramp up time Attention If the voltage supplied to th
3. to be switched on If possible a 0 mA nominal voltage should be applied to avoid any undesired impact on the hydraulic system during parameterization When the current controller is started parameter set 1 is enabled with the factory settings listed in section 2 1 e Select the Paramet menu Select P 2 gt P1 to copy the values from parameter set 2 to set 1 Complete settings Attention The following settings are only to be made by suitably qualified personnel Select the Paramet menu and choose Edit P 2 to allow parameter set 2 to be configured The settings should be made in the order detailed in section 3 The dither frequency and dither amplitude should be selected last e Select the Dither menu Press both buttons at the same time Select the desired dither amplitude Press both buttons at the same time to save the selected dither amplitude Note The dither is a sinusoidal oscillation modulated on the setpoint signal When the dither amplitude is too high the controller can no longer correct the oscillation This means that the modulated sinusoidal signal will no longer change even if the dither amplitude increases Low setpoints will automatically reduce the dither amplitude If the values to be selected are unknown the dither should be set to a mean current value Select the fdither menu Press both buttons at the same time Select the desired dither frequency Press both buttons at the same time
4. 33 40303A00 Operating instructions 1 Installation and connection instructions Supply voltage 9 36 V Smooth DC voltage with residual ripple lt 5 If bridge rectified supply voltage is applied the size of the capacitors used for voltage smoothing has to be adjusted to the selected maximum current A separate grounding wire is to be used for the setpoint signal The grounding wire is to be connected directly to the GND terminal If the connecting cable is over 3 m long a shielded cable is to be used for the signal cords The cables must not be laid parallel to power cables The setpoint voltage must not be outside of the selected setpoint range for long times The current controller may be damaged by prolonged application of setpoint voltages being outside of that range 2 Use of buttons The upper display line shows the parameter name The lower line indicates the corresponding parameter value Provided that the cursor is positioned in the upper line a different parameter can be selected by pressing one of the two buttons Press the upper button to proceed to the next parameter or the lower button to select the previous parameter If the cursor is positioned in the lower display line the value of the parameter currently identified in the upper line can be changed by pressing one of the buttons Press the upper button to increase the value or the lower button to reduce the value Press both buttons at the sa
5. e RL input is 2 V 36 V the ramp parameters are ignored In this case the shortest possible ramp is used To select the ramp down time Select the Toff menu Press both buttons at the same time Select the desired ramp down time Press both buttons at the same time to save the selected ramp down time Note Select the Current menu to view the current value measured by the A D converter of the current controller and to check whether the controller works correctly No offset correction of this value has been performed by the micro controller which means that the accuracy is about 10 If the controller cannot adjust the selected setpoint the message NO CONT will be displayed Extended settings Possible configurations of the digital current controller Copying factory settings from set 2 to set 1 and changing parameters see section 4 2 e Start the current controller set 1 enabled e Select the Paramet menu pressing the lower button e Briefly press both buttons at the same time e Select P 2 gt P 1 pressing the upper button Briefly press both buttons at the same time The settings in set 2 are now copied to set 1 Change the setpoint range if necessary Change the setpoint dead range if necessary Change the maximum current if necessary Change the minimum current if necessary Change the ramp up time if necessary Change the ramp down time if necessary Note A dither is only us
6. ed if it was configured in set 2 by the system supplier The current controller provided by Kendrion Binder Magnete is delivered with a 40 dither 280 mAp p Seite 1 33 40303A00 Operating instructions 4 2 4 3 Complete settings see section 4 3 e Start the current controller set 1 enabled e Select the Paramet menu pressing the lower button e Briefly press both buttons at the same time Select Edit P 2 pressing the upper button Briefly press both buttons at the same time Set 2 is now enabled cursor blinks Select the setpoint range Select the setpoint dead range Select the maximum current Select the minimum current Select the ramp up time Select the ramp down time Select the dither amplitude Select the dither frequency Select the Paramet menu and choose Edit P 1 set 1 is enabled the cursor disappears e Select the Paramet menu and copy set 2 to set 1 P 2 gt P1 Note All parameters can be configured Copying factory settings from parameter set 2 By selecting the Paramet menu parameter set 2 configured by the hydraulic system supplier can be copied to parameter set 1 to allow this configuration to be enabled as soon as the current controller is started The controller is delivered by Kendrion Binder Magnete with the configuration detailed in section 5 1 Proceed as follows After installation and correct connection of the current controller the operating voltage has
7. he actual current path during operation of a proportional solenoid with dither Tek ME Soks ss 106 Acgs GF 0 013 vac Fig 4 Current path with dither 8 Serial interface The current controller is equipped with a serial interface An optional programming kit 33 43603A00 can be used for configuration over the PC via the RS232 port Digital current controller for installation on mounting rails 9 Definition of terms Dither Delete status Parameter Parameter set Setpoint dead range Ramp Ramp down time Ramp up time alternating signal which is superimposed on the setpoint to reduce static friction and the hysteresis associated with it The digital current controller adjusts the dither amplitude to the setpoint signal to avoid control deviations generally encountered with analog current controllers parameter set ensuring a safe controller status The maximum current is set to 0 mA to disable solenoid control selectable values to determine the controller behaviour e g minimum current maximum current etc all parameters of the current controller percentage of setpoint range ignored by the current controller The output current is kept at 0 mA as long as the setpoint remains below the dead range threshold value When the threshold value is reached the current is increased to the selected minimum current value limitation of the setpoint rise and fall speed time it takes for t
8. he current to fall from maximum current to minimum current at a maximum negative setpoint jump time it takes for the current to rise from minimum current to maximum current at a maximum positive setpoint jump Kendrion Binder Magnete GmbH Plant M nchweilerstraBe 1 D 78048 Villingen Schwenningen Mailing address Postfach 1220 D 78002 Villingen Schwenningen Phone 49 0 7721 877 0 Fax 49 0 7721 877 359 Seite 4
9. me time to change between parameter selection and value selection i e change between names line and values line Note The selected values are immediately taken over by the current controller However the changed value is not saved until the user changes from value selection to parameter selection by pressing both buttons at the same time The selected value is also saved when the display returns to standby mode when no button has been pressed for about 5 minutes In case of a power failure the value setting is lost 3 Standard starting procedure 3 1 Overview Start the current controller set 1 enabled Select the setpoint range Select the setpoint dead range Select the maximum current Select the minimum current Select the ramp up time Select the ramp down time Note The dither frequency and dither amplitude cannot be selected 3 2 Description of Settings After installation and correct connection of the current controller the operating voltage has to be switched on preferably at a nominal value of 0 mA When the current controller is started parameter set 1 is enabled with the factory settings listed in section 5 1 The settings should be changed in the following order To select the setpoint signal Select the Input menu Press both buttons at the same time Select the desired setpoint range Press both buttons at the same time to save the selected setpoint range To select a setpoint dead range
10. r Edit P 2 in Edit P 1 in Paramet menu Paramet menu Press both buttons Press both buttons gt 4 EEPROM Parameter set 1 Parameter set 2 selectable parameters selectable non selectable parameters parameters hidden hidden parameters parameters Fig 1 Parameter administration block diagram Digital current controller for installation on mounting rails 6 Messages The current controller recognizes faults and specific operating statuses and displays corresponding messages on the controller display DISABLE 0 V 0 5 V on the ENABLE control input Controller switched off SHORT CIRCUIT short circuit on the output NO CONT controller has reached the maximum control limit the supply voltage is too low for the selected nominal current to flow through the solenoid e In case a serious fault occurs the Error message is displayed along with the corresponding error code In this case the current controller has to be assigned the delete status see section 4 4 before any new parameterization can be started The last 10 error codes are stored in consecutive order for diagnostic purposes and can be read out in parameter set 2 via the Error menu Error code 255 means that the corresponding memory location is unoccupied and that no error has occurred Error codes and meanings 1 IIC bus error 3 implausible parameters during initiali
11. ther amplitude Dither 0 Dither frequency fdither 83 Hz Parameter set 2 can be used to store factory settings The Kendrion Binder Magnete factory settings of parameter set 2 are suitable for a variety of standard proportional solenoids Set 2 Setpoint signal Input 0 5 V Setpoint dead range Inputoff 0 Maximum current Imax 2100 mA Minimum current Imin 0 mA Ramp up time Ton 50 ms Ramp down time Toff 50 ms Dither amplitude Dither 40 Dither frequency fdither 83 Hz Change of parameter sets Set 1 is enabled automatically as soon as the current controller is switched on To enable parameter set 2 select the Paramet menu and choose Edit P 2 When set 2 is enabled the cursor will blink To disable set 2 select the Paramet menu and choose Edit P 1 For details how to select the settings of the individual parameters please refer to section 2 The individual parameters of the enabled parameter set can be changed independently of each other and in any desired order However the change sequence detailed in sections 3 and 4 3 should be adhered to as any changes will immediately be taken over by the current controller The delete status described in section 5 1 can be enabled for both parameter sets see section 4 4 It is also possible to copy the parameters from set 2 to set 1 see section 4 2 and vice versa However this can only be done if the parameter set to be changed has been enabled
12. to save the selected dither frequency Note Select a dither frequency at which the valve slide performs only minor oscillations without affecting the hydraulic system Digital current controller for installation on mounting rails The values are immediately taken over by the controller However the changed values are not saved until both buttons are pressed at the same time see section 2 If the values included in parameter set 2 are to be enabled whenever the current controller is started the set 2 values have to be copied to parameter set 1 by selecting the Paramet menu see section 4 2 4 4 Delete status The delete status can be assigned to both parameter sets see section 5 1 Select the Paramet menu Press both buttons at the same time Select Delete Press both buttons at the same time The new values are copied to the corresponding parameter set and the current controller is initialized Parameters 5 1 5 M Parameter sets The current controller features 2 parameter sets P 1 and P 2 Parameter set 1 is the default parameter set loaded when supply voltage is applied Set 1 includes the actual operating parameters The current controller is delivered with set 1 in delete status Delete status Setpoint signal Input 0 5 V Setpoint dead range Inputoff 0 Maximum current Imax 0 mA Minimum current Imin 0 mA Ramp up time Ton 50 ms Ramp down time Toff 50 ms Di
13. zation 4 wrong control byte during initialization 5 error during parameter storage 6 wrong control byte during parameter storage 7 error during storage of a parameter set 8 wrong control byte during storage of a parameter set 10 overflow on serial interface 12 transmission error on serial interface 13 message processing error 14 message transmission error 15 unknown message type 16 implausible message 17 controller not calibrated Examples Fig 2 shows the operating behaviour of the current controller Parameter settings Setpoint signal Input 0 5 V Setpoint dead range Inputoff 0 Maximum current Imax 2100 mA Minimum current Imin 700 mA Ramp up time Ton 2 0s Ramp down time Toff 4 0s Dither amplitude Dither 0 Dither frequency fdither 250 Hz Time s Setpoint input Fig 2 Operating behaviour Seite 3 33 40303A00 Operating instructions Fig 3 shows the operating behaviour of the current controller at a 10 setpoint dead range Parameter settings Setpoint signal Input 0 5 V Setpoint dead range Inputoff 10 Maximum current Imax 2100 mA Minimum current Imin 700 mA Ramp up time Ton 2 0s Ramp down time Toff 3 0s Dither amplitude Dither 0 Dither frequency fdither 250 Hz Current A Setpoint input V o Time s Setpoint input Current Fig 3 Operating behaviour with 10 setpoint dead range Fig 4 shows t
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