Technical data

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W.E.ST.

Elektronik GmbH

Technical Documentation

PAM-190-P-A

PAM-190-P-I

Universal power plug for proportional valves

Summary of content (24 pages)

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W.E.ST.
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W.E.ST. Elektronik GmbH CONTENTS 1 2 3 4 5 6 7 General Information............................................................................................................................................. 3 1.1 Order number .............................................................................................................................................. 3 1.2 Scope of supply ................................................................................................................
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W.E.ST. Elektronik GmbH 1 General Information 1.1 Order number PAM-190-P-A1 PAM-190-P-I - power amplifier for proportional valves with 0…10 V input in M12-version - power amplifier for proportional valves with 4...20 mA input in M12-version Alternative products PAM-196 - two independent channels for pressure or throttle valves 1.2 Scope of supply The package includes the power plug (without the M12 counter plug) and the gasket. This documentation can be downloaded as a PDF file from www.w-e-st.de.
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W.E.ST. Elektronik GmbH 1.4 Symbols used General information Safety-related information 1.5 Legal notice W.E.St. Elektronik GmbH Gewerbering 31 D-41372 Niederkrüchten Tel.: Fax.: +49 (0)2163 577355-0 +49 (0)2163 577355 -11 Home page: EMAIL: www.w-e-st.de or www.west-electronics.com technics@w-e-st.de Date: 01.12.2014 The data and characteristics described herein serve only to describe the product. The user is required to evaluate this data and to check suitability for the particular application.
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W.E.ST. Elektronik GmbH 1.6 Safety instructions Please read this document and the safety instructions carefully. This document will help to define the product area of application and to put it into operation. Additional documents (WPC-300 for the start-up software) and knowledge of the application should be taken into account or be available. General regulations and laws (depending on the country: e.g. accident prevention and environmental protection) must be complied with.
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W.E.ST. Elektronik GmbH 2 Characteristics This power plug is used to control proportional valves with one solenoid. The compact and inexpensive solution will be mounted directly on the solenoid. A typical input signal of 0… 10 V (optional 4... 20 mA) can be used. The output current is closed loop controlled and therefore independent from the supply voltage and a varying solenoid resistance.
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W.E.ST. Elektronik GmbH 2.1 Device description Operation LED Funktions LED 7 8 9 0 1 2 3 Selection Switch Drehschalter M12-Plug (5pol) IEC 61076-2-101 (M12-Version) Parameter LED Parameter LED 34 4 56 Button Down Taste Ab Button Up Taste Auf ~ 38 78 Pin layout M12/5 plug Type-label Typenschild (5,5) 34 Page 7 of 25 Rectangle Plug / Rechteck Verbinder Type: A EN 175301-803 Rubber-seal / Dichtung PAM-190-P-*-1021 01.12.
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W.E.ST. Elektronik GmbH 3 Use and application 3.1 Installation instructions  All cables which lead outside must be screened; complete screening is required. It is also a requirement that no strong electro-magnetic interference sources are installed nearby when using our control and regulation modules.  The equipment should be installed and wired in accordance with the documentation bearing in mind EMC principles.
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W.E.ST. Elektronik GmbH 3.2 Commissioning Step Task Installation Install the device in accordance with the circuit diagram. Ensure it is wired correctly and that the signals are well shielded. Switching on for the first time Ensure that no unwanted movement is possible in the drive (e.g. switch off the hydraulics). Check the input current consumption. If it is higher than specified there is an error in the wiring. Switch the device off immediately and check the wiring.
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W.E.ST. Elektronik GmbH 3.3 Manual parameterization The manual adjustment is comparable with the adjustment via potentiometer. Not all parameter of the power plug are available in this mode2. The following parameters can be set: Parameter Switch Parameter Setting range Remark 0 DEFAULT - Released only by pressing the button "Up" and "DOWN" simultaneously. Response: a short and fast flashing of the LED.
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W.E.ST. Elektronik GmbH 4 Technical description 4.1 Input and output signals Connection Supply PIN 1 Power supply (see technical data) PIN 3 0 V (GND) Power supply (ground). Connection Analogue signals PIN 2 PIN 4 Input value (differential input), 0…100% corresponds to 0…10V or 4…20mA. Connection Communication PIN 5 LIN bus connection: The amplifier is parameterized via this connection and our programming box ULA-310. 4.
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W.E.ST. Elektronik GmbH 4.3 Circuit diagram 1 24 V PELV 0V PAM-190 Reference Voltage Referenzspannung (brown) (only W-Version / nur W-Version) DC 3 DC Power Stage / Ausgangsstufe Shunt - I-Version Input / Eingang A: 0...10V I: 4...
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W.E.ST. Elektronik GmbH 4.4 Typical wiring PAM-190 Link to the PLC Verbindung zur SPS 2 3 7 8 9 0 1 4 56 Valve / Ventil ULA-310 Link to the PLC Verbindung zur SPS USB-Plug-Socket to PC USB-Buchse zum PC Power plug amplifier plus programming device 4.5 Analogue input wiring SPS / PLC 0... 10 V AIN:W 1000 1000 4... 20 mA input +In PIN 2 +In PIN 2 -In PIN 4 -In PIN 4 GND PIN 3 GND 0 V (für 0... 100%) AIN:W 2000 1600 2000 C (für 0...
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W.E.ST. Elektronik GmbH 4.6 Technical data Power supply Current consumption External fuse Reference voltages Analogue inputs (sensor and command signals) Resolution [VDC] [mA] [A] [V] [V] [mA] [%] 12… 30 (incl. ripple) < 50 + solenoid current 3 medium time lag 8 ( maximum 10 mA) in W-version 0… 10; 90 kOhm 4...20; 240 Ohm < 0,1 (intern 0,02) incl. oversampling PWM Output current PWM frequency [A] [Hz] 1 or 2,5 (per software selectable) 60...
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W.E.ST. Elektronik GmbH 5 Parameters 5.1 Parameter list Command LG MODE Default Unit Description EN - Changing language help texts. STD - Mode parameter (standard or expert). - Free scaling of the analogue input signal. AIN:I A 1000 B 1000 C 0 X V LIM 0 Caution: V|C (Current / Pressure switchover is deactivated) 0.01% Signal overview function. R:UP 100 ms Ramp UP time for 100% of the input signal R:DOWN 100 ms Ramp DOWN time for 100% of the input signal MIN 0 0.
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W.E.ST. Elektronik GmbH 5.2 Parameter description 5.2.1 LG (Changing the language for the help information) Command LG x Parameters Unit Group x= DE|EN - STD Either German or English can be selected for the help texts. CAUTION: After changing the language press the ID button in the speed menu (module identification). 5.2.2 MODE (Switching between parameter groups) Command MODE x Parameters Unit Group x= STD|EXP - STD This command changes the operating mode.
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W.E.ST. 5.2.3 Elektronik GmbH AIN (Analogue input scaling) Command Parameters Unit AIN:I i= a= b= c= x= 0.01% - A B C X A -10000… 10000 -10000… 10000 -500… 10000 V|C Group STD This command can be used to scale the individual inputs. The following linear equation is used for scaling. 𝑦= 𝑎 ∙ (𝑥𝑖𝑛𝑝𝑢𝑡 − 𝑐) 𝑏 The “c” value is the offset (e.g. to compensate the 4 mA in case of a 4… 20 mA input). The variables a and b define the gain factor. e.g.: 2.
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W.E.ST. 5.2.4 Elektronik GmbH LIM (Signal monitoring) Command LIM X Parameters Unit Group x= 0… 2000 0,01% EXP The signal monitoring is used to check the input signal - after the scaling function - whether the signal is inside of the defined lower/upper area. Usable - for example - to detect a cable break down of joysticks. Example: LIM 500 (5% lower/upper limitation) If the input signal is > 95% or < 5% then the signal is outside of the working area.
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W.E.ST. Elektronik GmbH 5.2.6 MIN (Overlap compensation) 5.2.7 MAX (Output limitation) 5.2.8 TRIGGER (Response threshold for the MIN parameter) Command MIN MAX TRIGGER X X X Parameters Unit Group x= 0… 6000 x= 2000… 10000 x= 0… 3000 0,01% 0,01% 0,01% STD The output signal to the valve is adjusted by means of these commands. With the MAX value the output signal (the maximum valve control) can be reduced. With the MIN value the overlap (dead zone in the valve) can be compensated.
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W.E.ST. 5.2.9 Elektronik GmbH POL (Output polarity) Command POL X Parameters Unit Group x= +|- - STD The output signal polarity will be reversed. + - An input-signal of 0…-100 % leads to an output signal of 0…-100 % An input-signal of 0…-100 % leads to an output signal of 100…-0 % 5.2.10 CURRENT (Current range switchover) Command CURRENT X Parameters Unit x= 0|1 - Group STD The nominal current range is set with this parameter.
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W.E.ST. Elektronik GmbH 5.2.13 PWM (PWM frequency) Command PWM X Parameters Unit Group x= 60… 2650 Hz STD This parameter is entered in Hz. The optimum frequency depends on the valve. CAUTION: the PPWM and PPWM parameters should be adjusted with low PWM frequencies4. The PWM frequency can only be set in defined steps. This means that there are deviations between the specified and the actual frequency. The next highest frequency step is always used. 5.2.
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W.E.ST. Elektronik GmbH 5.2.16 PROCESS DATA (Monitoring) Command Parameters Unit W C U IA Demand value (according to the input scaling) Demand value (according to the profile generator) Control signal Solenoid current A % % % mA The process data are the variables which can be continuously observed on the monitor or on the oscilloscope. Page 22 of 25 PAM-190-P-*-1021 01.12.
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W.E.ST. Elektronik GmbH 6 Appendix 6.1 Failure monitoring Following possible error sources are monitored continuously: Source Fault Characteristic Demand value input at 4...20mA Broken wire The power stage is deactivated. Demand value input with the LIM signal monitoring (e.g. for joysticks Out of range The power stage is deactivated. Solenoid Broken wire, short circuit The power stage is deactivated. EEPROM (at switching on) Data error The power stage is deactivated. 6.
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W.E.ST. Elektronik GmbH 7 Notes Page 24 of 25 PAM-190-P-*-1021 01.12.