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W.E.ST. Elektronik GmbH Analogue inputs By use of analogue inputs you have to distinguish between symmetrical and asymmetrical inputs. All analogue inputs must be screened. The symmetrical input is carried out as a differential input for voltage signals and can be switched over per software to bipolar or unipolar signals. Especially by use of high-resolution analogue signals an additional cable twisted in pairs has to be taken. The asymmetrical inputs are optimized for the two-pole-conductor techniques (voltages or current signals as usual in the automobile industry). They can be switched over by software between voltage and current input. A low-impedance GND connection is required for good signal transmission. In this configuration the return line is the GND of the power supply. Therefore sensors and the control module should be combined at a common star point (low impedance) with the GND of the power supply. As common potential the 0V PIN 11 and optionally PIN 12 are used. All inputs are protected with suppressor diodes and RC-filter against transient overshoots. Differential input: Voltage level: bipolar ±10 V (PIN 9 and PIN 10) unipolar 0… 10 V (PIN 10 against PIN 9) input resistance: > 91 kΩ Asymmetrical inputs: Voltage level: unipolar 0… 10 V (against PIN 11) input resistance: 25 kΩ Current level: unipolar 4… 20 mA (against PIN 11) input resistance: app. 250 Ω Analogue outputs The analogue outputs are carried out as symmetrical differential outputs. Because all power amplifiers have a differential input (especially valves with integrated electronics), an optimal signal transmission even over greater distances is possible. All analogue outputs have to be wired with screened cables. Ideally, twisted pair cables are used. For the signal potential or if both outputs are used as two separate asymmetrical signals (f. e. for plug amplifiers), PIN 12 as GND potential has to be used. All outputs are protected with suppressor diodes against transient overshoots. As differential output: Voltage level: bipolar ±10 V (PIN 15 and PIN 16) Output current: max. 10 mA As asymmetrical outputs: Voltage level: 2 x unipolar 0… 10 V (PIN 15 or PIN 16 against PIN 12) Output current: max. 10 mA Seite 12 von 24
W.E.ST. Elektronik GmbH As current output: Voltage level: 1 x unipolar 4… 20 mA (PIN 15 to PIN 12) max output current: max. 22 mA max load: 390 ohm ATTENTION! At the asymmetrical output with the 0 V potential at PIN 12 a minimal output voltage of approx 0,1 to 0,15 V exists. Serial interface The serial interface is chosen for the parametering with a PC or a notebook. A suitable cable of 3,5mm JISC-6560 plug to 9pol. RS232 (PC compatible) can be bought under RS232-SO. You can parameterize our modules with each terminal program. However, by use of our application software WPC-300 you have enlarged functions and therefore it is preferable. Download: WWW.WEST-ELECTRONICS.COM or WWW.W-E-ST.DE Features: • Table orientated parametering • Saving and loading of the parameter sets • Process data monitoring • Oscilloscope for dynamical optimization of the control parameters • Terminal window for flexible data input Seite 13 von 24
Page 1 and 2: W.E.ST. Elektronik GmbH Technical d
Page 3 and 4: Revisions W.E.ST. Elektronik GmbH D
Page 5 and 6: General installation remarks Explan
Page 7 and 8: In- and outputs W.E.ST. Elektronik
Page 9 and 10: Typical wiring PLC Inputs PLC Outpu
Page 11: W.E.ST. Elektronik GmbH General IO
Page 15 and 16: Parameter table W.E.ST. Elektronik
Page 17 and 18: D (deceleration stroke or braking d
Page 19 and 20: W.E.ST. Elektronik GmbH TH (Stroke
Page 21 and 22: INPOS (in positioning window) W.E.S
Page 23 and 24: W.E.ST. Elektronik GmbH Appendix: P

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