Table of contents SECURITY ..................4 General safety instructions and warnings ..........4 Notes on handling the load valve ............4 Introduction ................. 4 Scope ...................... 4 Copyright ....................4 Disclaimer ....................5 Intended use.................... 5 Guarantee ....................6 Obligations of the customer ..............6 Authorized personnel ................
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Setting a sinusoidal load ................. 39 Starting and stopping the control box ............. 41 Status of the heartbeat ................41 Accessories ................. 41 Cleaning and maintenance ............42 Cleaning ....................42 Calibration and maintenance ..............42 Repair ...................... 42...
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Compensation for damages is generally excluded, except in cases of intent or gross negligence on the part of Hydrotechnik GmbH or if promised product properties are not available. If this product is used in environments for which it is not suitable or which do not meet the technical standard, we are not respon- sible for the consequences.
Send devices for which a warranty claim is made to the Hydrotechnik GmbH customer service centre carriage paid and with a copy of the invoice or delivery note. You will find the address at the end of this manual.
3 DES CRIP TION OF THE DEVICE Components Control box receives the device settings from the measuring device and controls the proportional valve (pilot circuit) Proportional valve with Controls the flow rate according to the programmed characteristic amplifier curve (set point) Amplifier Proportional valve amplifier CAN Pressure Sensor...
(nominal pressure, maximum volume flow, error limits, etc.) were completely retained. The programming of the load valve is carried out either by the Hydrotechnik measuring device or by means of the available CAN commands when connected to an existing CAN bus.
Technical data Mechanical data Material housing 3.4365 ... turbine wheel 1.0718 ... Seals Mechanical connection ISO 228 - G 1¼" Mounting position Weight approx. 6,5 kg Medium temperature max. 120 °C Ambient / storage temperature -20...+65 °C Hydraulic data Permissible operating pressure 420 bar Measuring range 16...600 l/min...
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Connections control box CAN socket M12 x 1 with screw lock A-coding, 5-pin, socket IEC / DIN EN 61076-2-101 CAN SHLD CAN shield M12 A 5p f CAN Ub CAN supply CAN GND CAN ground CAN H CAN high CAN L CAN low CAN connector M12 x 1 with screw lock A-coding, 5-pin, connector IEC / DIN EN 61076-2-101...
Connect Connecting to a Hydrotechnik measuring instrument with CAN functionality Connect the control box of the QL 326 with the CAN data cable to the measuring instrument. Connect the power supply unit to the supply plug of the control box.
4 OP ERATION WITH MS 5060 P LUS With the MultiSystem 5060 Plus, you can program the electronically controlled load valve HySense QL 326 and operate it in various operating modes. Activating the CAN-BUS Start the MultiSystem 5060 Plus and activate the CAN bus in the "DEVICE" menu. Set the baud rate to 125kBit/s.
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Parameters Shows the current configuration of the load valve to highlight Parameter and press Note: You can only program the load valve if it is INACTIVE Device or QL-326 If no load valve is connected to the measuring instrument device is displayed.
Programming the load valve Note: You can only program the load distance if it is INACTIVE. You can define the operating modes in the Load valve (1/2) dialog. Press to open the menu. to highlight Special Applications and press press to highlight Load distance to highlight...
Programming the operating mode ramp In this operating mode a ramp, devided in four stages, can be defined. The values shown in above dialog results in this ramp: Range A: Rising edge from start value A end value A in time duration value B duration B...
Programming operating mode sine wave In this operating mode a sinusoidal curve, devided in three stages, can be defined. The values in the shown dialog result in this sine wave: amplitude of the oscillation and corresponds to the Volt value as a percentage of the maximum output voltage.
Programming channels If further CAN sensors are integrated into the CAN bus and it becomes necessary to reassign the channels of the load valve, then proceed as follows Press to display the second dialog box Load valve (2/2). Seven channels are required to operate the load line. Highlight the desired channel, Press and change the channel number.
Operate the load line The following requirements must be met before you can operate a load valve with the measuring instrument: • The load valve is connected to the measuring instrument and ready for operation. • Active communication between the measuring instrument and the load valve. heartbeat is displayed.
The special function bars contain the following functions: START Starts the load valve. Yellow: The loading section can be started. Green: The load valve has started and is running. STOP Stops the load valve. The valve of the load valve is opened and the full flow rate flows through the load valve.
5 OP ERATION WITH MS 5070 With the MultiSystem 5070, you can program the electronically controlled load valve HySense QL 326 and operate it in various operating modes. Activating the CAN-BUS Start the MultiSystem 5070 and activate the CAN #1 bus in the menu "Connections".
Setting Load distance Control unit is inactive - button color grey. The test sequence is set at this point. You can choose between manual, ramp or sine, or activate the load valve - button colour green. Setting QL326 Sensors This is where the sensor settings are made. The control unit, pressure sensor and volume flow sensor are always available in the standard version.
Programming the operating mode MANUAL In this operating mode it is not necessary to program additional parameters. In the MANUAL mode, the position of the proportional valve is set by pressing the function keys during opera- tion of the load valve. Save and exit the setting with F5 Programming the operating mode Ramp In this operating mode a ramp, devided in four stages, can be defined.
start value A end value A duration Range A: Rising edge from in time Range B: Level B with value B and the dwell time duration B start value C end value C duration C Range C: Falling edge from in time Range D: Level D with value D...
amplitude of the oscillation and corresponds to the Volt value as a percentage of the maximum out- put voltage. Offset between zero and the baseline of the oscillation and corresponds to the Volt value as a per- centage of the maximum output voltage. Frequency of the oscillation - is given as a multiple of 10 mHz Area...
Setup LoadValve Sensors to highlight Press F4 and scan the CAN bus. Leave the setting with F5 Detected sensors are configured directly and the button colour changes to green. Detection of multiple sensors on the CAN bus The first found sensor is pre-installed, if more than one sensor of one measurement variable are detected. The button colour shows yellow.
Activation QL326 When all relevant traffic lights of the sensor system are "GREEN", the load distance can be activated. ONLINE / OFFLINE - Mode Switches the load valve to the ONLINE mode. The button colour of the control unit changes to green. A correction of the parameters is no longer possible.
Measured value display The measured value display shows all active sensors with their current measured values. The structure of the measured value display is the same for all operating modes. A softkey bar is located at the bottom of the screen. Here you will find commands to start the set operating mode, to change the display format, to call up the last measurement and to return to the load valve.
Start test cycle Manual In the manual mode the load valve can only be controlled by manual input. After starting the test cycle with F2 , the desired valve voltage can be set with F3 and F4 . Any number of measuring channels can be added to the measured value display.
Start test cycle Ramp or Sine The selection of functions on the softkeybar is reduced in the operating mode ramp or sine. Switches the display mode List, Tiles, Graphics, MINMAX Start the test. The test cycle is activated and processed automatically. In the case of cyclic repetition, the current executed cycle is displayed in the header Return to the Load Distance menu.
Display of the storage Various displays of the measurement results are available after the test cycle. For a better overview, all chan- nels can be formatted accordingly. The graphic representation of measuring channels over time as well as the representation of measuring chan- nels over a defined measuring channel are possible.
6 CONTROL WITH CAN COMMANDS The load valve can be fully controlled via the CAN bus. Various data are defined and transmitted to the control box via CAN bus. The load valve is able to follow a pre- defined load curve (ramp or sine). In addition, it is possible to process the load curve cyclically, i.e. identical loads can be run several times in succession.
Example for control via CAN • Read QL Type ("QL326") Command 0x55 0x01... • Read the heartbeat status (Byte[0]) 0x02 means ControlUnit is not configured. • Read firmware version Command 0x55 0x02... • Activate Send parameters ONCommand 0x99 0x01 • Send all parameters to control box (ramp and sine) Param W1Param Z1Param...
Example for programming and starting with CAN commands The controller has three different modes: • calibration • configuration • operation Calibration The control boxes are usually delivered calibrated. Activate calibration mode Send this CAN message to start the calibration mode: 0x620 The calibration mode is confirmed every five seconds by a heartbeat message: 0x720...
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Calibrate end value of channel 1 0x620 The D/A output is set to 0 V. To get the actual digital value for the final value, repeat the message until the DVM displays 10 V DC at the terminal output. With the following message the AD value is decremented again so that the exact final value can be determined.
Setting a ramp load You can set an individual load curve in the form of a ramp: start value A end value A duration Range A: Rising edge from in time Range B: Level B with value B and the dwell time duration B Range C: Falling edge from start value C...
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Programming values and times Start and end values ramp A, start value ramp C: Start Start Start Start 0x620 0x02 ALSB AMSB ALSB AMSB CLSB CMSB Duration Ramp A, Duration B, Ramp C: Duration Duration Duration Duration Duration Duration 0x620 0x03 ALSB AMSB...
Setting a sinusoidal load Besides the ramp, you can also program a sinusoidal load: amplitude of the oscillation and corresponds to the Volt value as a percentage of the maximum out- put voltage. Offset between zero and the baseline of the oscillation and corresponds to the Volt value as a per- centage of the maximum output voltage.
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Replace the placeholders in the bytes with these commands: Byte B1 (xxh) 0x01Sine On0x02Sine Bytes B2 and B3 (yyyyh) Amplitude in multiples of 10 mV, LSB first Bytes B4 and B5 (zzzzh) Frequency in multiples of 10 mHz, LSB first Bytes B6 and B7 (vvvvh) Offset in multiples of 10 mV, LSB first Save configuration...
XX = 0x7F Control box in configuration mode XX = 0x77 Control box in calibration mode Firmware version in ASCII format 7 ACCES S ORIES Please use only spare parts and accessories from Hydrotechnik. Product Order no. CAN cable - 5m 8824-R7-05.00...
8 CLEANING AND MAINTENANCE Cleaning Attention Damage to the device possible! Switch off and disconnect the load from the power supply before starting cleaning. Otherwise, a short circuit may occur, which may cause serious damage to the unit. Attention Damage to the device possible! Never use aggressive cleaning agents, solvents, benzine or similar chemi- cals to clean the device.
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