Programmable motion monitor for secure and redundant control of motion sequences (54 pages)
Summary of Contents for Motrona AX 345
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AX 345, AX 347, AX 348 Process Indicators with Two Analogue Inputs and Calculations AX 345 Process Indicator, Display only AX 346: Process Indicator with Analogue Outputs 0 - 10 V und 0/4 – 20 mA (see separate manual) AX 347:...
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Safety Instructions This manual is an essential part of the unit and contains important hints about function, correct handling and commissioning. Non-observance can result in damage to the unit or the machine or even in injury to persons using the equipment! ...
Also it may be important to display and evaluate both, linear and non-linear analogue inputs at an acceptable accuracy, which requires programmable linearization functions. Process controllers of series AX 345 - 348 have been designed for this kind of requirements. Model AX 345 provides display function only.
2. Terminal Assignments AX 345: Basic model 1 2 3 4 5 6 7 8 9 10 optional, see *) AX 347: Model with two presets and optocoupler outputs AX 348: Model with serial RS232 / RS485 interface 1 2 3 4 5 6 7 8 9 10 optional, siehe *) The connection of PE is optional and not necessary for safety or for EMC.
When using the earthing option, please be aware that all terminals marked GND or AGND will be earthed. Multiple earthing on different positions of an installation may cause problems, especially with poor overall performance of the whole earthing and screening system! ...
2.4. Optocoupler transistor outputs (model AX 347 only) The outputs provide programmable switching characteristics and are potential-free. Please connect terminal 8 (COM+) to the positive potential of the voltage you like to switch (range 5V..35V). You must not exceed the maximum output current of 150mA. Where you intend to switch inductive loads, please provide filtering of the coil by means of external diodes.
2.5. Serial RS232 / RS485 interface (AX 348 only) Ex factory the unit is set to RS232 communication. This setting can be changed to RS485 (2-wire) by means of an internal DIL switch. To access the DIL switch, you must remove the screw terminal connectors and the backplane.
3. Jumper settings When your input signal is a current of 0-20 mA or 4-20 mA, there is no need to change jumper settings and you can skip this section. Where however you intend to use one or both inputs for voltage signals, you must change the internal jumper settings correspondingly.
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Current inputs are automatically scaled to an input range of 0/4 – 20 mA. Voltage inputs use the standard range of +/- 10V. You are free to measure voltages up to 120 volts DC by use of a remote resistance in series to the input line (please observe applicable safety standards!).
4. How to Operate the Keys The unit uses 3 front keys for all setup operations. Subsequently, the key functions will be named as shown in the table below. ENTER (Command) The functions of the keys are depending on the actual operating state of the unit. The following three operating states apply: ...
4.2. Parameter settings 4.2.1. How to select a parameter The ENTER key will scroll through the menu. The SET key allows to select the corresponding item and to change the setting or the numeric value. After this, the selection can be stored by ENTER again, which automatically changes over to the next menu item.
4.3. Teach operation he Time-out function will be switched off during all Teach operations Function ENTER will conclude or abort any Teach operation in progress SET function is fully similar to normal set-up operation Cmd will store the display value to the register and will change over to the next interpolation point.
The subsequent table is to show the general structure of the whole menu only. Detailed descriptions of all parameters will follow in section 6. Menu overview: Basic Parameters AX 345 AX 347 AX 348 „n)odE“ „n)odE“...
In general, the parameters described subsequently must be set with the very first commissioning of the unit only. For best comprehensibility, this section describes setup of all display functions only as needed for model AX 345, and settings applicable to preselections and switching outputs of AX 347 are described separately.
Menu Text Default Command key enable The Command key is switched off and no Offset values will appear in the menu The Cmd key will execute the Tare/Offset function The Cmd key will execute the Teach function The Cmd key will execute both, the Tare and the Teach function 6.2.
6.3. Modes of operation 6.3.1. Single mode (input A only) Menu Text Setting Range Default Input A range Set the desired range for input A Voltage +/-10V Current 0-20 mA Current 4-20 mA Start value A -99999 … 99999 Value which the unit will display with a zero input signal of 0 volts or 0/4 mA End value A -99999 …...
6.3.2. Dual Mode (Inputs A and B separately) With this mode, the SET key selects between display of channel A and display of channel B, and the bar of the high order LED indicates which of the two channels is actually in display. Menu Text Input Range Default...
6.3.3. Combined Modes [A + B], [A - B], [A : B], [A x B] These modes allow displaying either the single channels A and B or the calculated result according to the selected combination. The SET key allows scrolling between the three displays.
6.4. Additional settings for the Preselections (model AX 347 only) 6.4.1. Basic settings for the Presets: The basic setup menu provides the following additional parameters which are relevant for the operation of the presets and outputs only: Menu Text Setting Range Default Signal source of switching output „OUT1“...
Menu Text Setting Range Default Output 2 switching characteristics See above See above See above See above Output is statically active when the display reaches the value of Preset 1 – Preset 2 *) Output is dynamically active when the display reaches the value of Preset 1 –...
6.4.3. Operational settings for presets: The settings for the Preselection values appear at the beginning of the operational parameters: Menu Text Setting Range Default Preselection 1 -99999 … 99999 10000 Preselection 2 -99999 … 99999 5000 6.4.4. Actual switching state of the outputs: At any time you can find out the actual switching state of the outputs.
When Preset 1 is used to monitor a minimum value with setting “LE”, and Preset 2 is used to monitor a maximum value with setting “GE”, then output 1 will operate with an Automatic Startup-Inhibit, i.e. it will become enabled only after the measuring value has crossed the minimum setting the first time.
6.5. Additional Parameters for the Serial Interface (model AX 348 only) 6.5.1. Communication settings in the Basic Menu: Menu Setting Range Default Unit Number 0..99 You can assign any unit number between 11 and 99. The address must however not contain a “0“...
6.5.2. Operational Parameters for configuration of the interface: Menu Setting Range Default Serial Timer: 0,000 0,100 sec Setting 0,000 allows manual activation of a serial data 0,010 sec transmission at any time. All other settings specify the cycle … time for automatic transmission, when the interface is set to 9.999 sec "Printer Mode"...
6.5.3. PC-Mode Communication with PC - Mode allows free readout of all parameters and registers of the unit. The subsequent example shows the details of communication for serial readout of the actual display value. The general string to initiate a request has the following format: EOT = Control Character (Hex 04) AD1 = Unit Address, High Byte...
6.5.4. Printer Mode The Printer Mode allows cyclic or manual activation of transmissions of the specified register data. The corresponding register can be specified by means of parameter „S-Code“. Another parameter named „S-mod“ allows selection between two different string types: „S-mod“...
7. Commissioning Commissioning of this unit is easy and uncomplicated when following the subsequent steps: Step Action See section Analogue inputs Set jumpers Basic settings Select Operation mode Keep linearization and Tare function off firstly Parameter settings ...
8. Special Functions 8.1. Tare / Offset function This function will become active after the “Cmd” parameter has been set to “oFFSEt” or to “both”(see 6.1). As a result, every touch of the “Cmd” key will store the actual display value to the Offset register, resulting in a Zero display with the actual input signal.
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P1(x)= -1000 P1(y)= 900 P8(x)= 0 P16(x)= 1000 P8(y)= 750 P16(y)= 800 P16(x)= +1000 P1(x)= 0 P16(y)= - 600 P1(y)= 0 Linearisation Mode = 4_quA Linearisation Mode = 1_quA Application Example: We like to display the filling quantity (volume) of a tank as shown below, with use of a pressure sensor mounted to the bottom of the tank.
8.3. Manual input or „Teaching“ of the interpolation points Interpolation points to form the linearization curve can be entered one after another, using the same procedure as for all other numeric parameters. This means you will enter all parameters P01_x to P16_x and P01_y to P16_y manually by keypad. During manual input of interpolation points the unit will not examine the settings P01_x to P16_x.
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When you read the x-value of your first interpolation point in the display, press “Cmd” again. This will automatically store the actual display value to the P01_x register, and for about 1 second you will read “P01_y “ on the display, followed again by the same reading stored previously.
8.4. Overflow and Underflow Control The unit continuously monitors both input channels for possible overflow or underflow situations (input signal out of specified range) Overflow: the analogue input signal is greater than +10,2 V or +20,4 mA Underflow: the analogue input signal is lower than -10,2 V or -0,4 mA Any out-of-range situation will cause a message according the table below: Display Input A...
9.2. Technical data Power supply AC : 115/230 V (+/- 12,5 %), 7,5 VA Power supply DC : 24 V (17 – 30 V), approx. 100 mA (without aux. sensor supply) Ripple : ≤ 10% @ 24VDC Total AC power : 7,5 VA DC current consumption : 18 V : 110 mA, 24 V : 90 mA, 30 V : 80 mA...
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