1 General Information 1.1 Order number Power amplifier for proportional valves with 0…10 V input in IP65-version PAM-140-P-A-1010 PAM-140-P-I-1010 Power amplifier for proportional valves with 4...20 mA input in IP65-version Alternative and extended products PAM-190-P Power amplifier (plug) for proportional valves with M12 connection...
Tel.: +49 (0)2163 577355-0 Fax.: +49 (0)2163 577355-11 Home page: www.w-e-st.de www.west-electronics.com EMAIL: info@w-e-st.de Date: 18.08.2015 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. General suitability cannot be inferred from this document.
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.
2 Characteristics This power amplifier is used to control proportional valves with one solenoid. The compact solution is imple- mented in an inexpensive IP-65 housing. A typical input signal of 0… 10 V (optional 4... 20 mA) can be used. The output current is closed loop con- trolled and therefore independent from the supply voltage and a varying solenoid resistance.
2.1 Device description 4,5 mm PG 11 25 mm 46 mm 34 mm 58 mm Operation LED/ Parameter LED/ Funktions LED Parameter LED Selection Switch/ Dreh- schalter Button Down/ Taste Ab Button Up/ Taste Auf Page 7 of 24 PAM-190-P-*-1010 18.08.2015...
3 Use and application 3.1 Installation instructions All cables which lead outside must be screened; complete screening is required. It is also a require- ment that no strong electro-magnetic interference sources are installed nearby when using our control and regulation modules. ...
3.2 Commissioning Step Task Install the device in accordance with the circuit diagram. Ensure it is wired cor- Installation rectly 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).
3.3 Manual parameterization 3.3.1 Parameter overview The manual adjustment is comparable with the adjustment via potentiometer. Not all parameter of the power plug are available in this mode Switch Parameter Setting range Remark position DEFAULT Released only by pressing the button "Up" and "DOWN" simultaneously.
5 Parameters 5.1 Parameter overview Group Command Default Unit Description Basic parameters Changing language help texts MODE Parameter view Input signal adaptation Signal scaling AIN:W 1000 Free scaling of the analogue input. 1000 0,01 % Range monitoring 0,01 % Signal monitoring function (e.g. joystick error) Ramp function R:UP Command signal ramp times...
5.2 Basic parameters 5.2.1 LG (Changing the language) Command Parameters Unit Group x= DE|EN Either German or English can be selected for the help texts. CAUTION: After changing the language settings, the parameter list has to be updated by pressing the identification button “ID”.
5.3 Input signal adaptation 5.3.1 AIN (Analogue input scaling) Command Parameters Unit Group AIN:W a= -10000… 10000 b= -10000… 10000 c= -10000… 10000 0,01 % x= V|C This command offers an individual scalable input. The following linear equation is used for the scaling. ...
5.3.2 LIM (Signal monitoring) Command Parameters Unit Group x= 0… 2000 0,01 % This command defines the pressure, which corresponds to 100 % of the input signal. If the demand is set incorrectly, this leads to incorrect system settings, and the dependent parameters cannot be calculated correctly.
5.4 Output signal adaptation 5.4.1 MIN (Deadband compensation) 5.4.2 MAX (Output scaling) 5.4.3 TRIGGER (Response threshold for the MIN parameter) Command Parameters Unit Group x= 0… 6000 0,01 % x= 2000… 10000 0,01 % TRIGGER x= 0… 3000 0,01 % With this command, the output signal is adjusted to the valve characteristics.
5.4.4 POL (Output polarity) Command Parameter Unit Group + | - This command allows a switch over of the output signal direction (after the MIN-MAX function). Input signal 0… 100 %, nominal output current 0… 100 %. Example: POL:A Input signal 0… 100 % nominal output current 100… 0 %. POL:A 5.5 Output signal adaptation 5.5.1...
5.5.4 PWM (PWM Frequency) Command Parameter Unit Group x= 60… 2650 This parameter is entered in Hz. The optimum frequency depends on the valve. CAUTION: when using low PWM frequencies the PPWM and PPWM parameters should be adjusted The PWM frequency can only be set in defined steps. This means that there are deviations between the specified and the actual frequency.
5.6 PROCESS DATA (Monitoring) Command Description Unit Command value after input scaling Comman value after ramp function Control signal Solenoid current The process data are the variables which can be observed continuously on the monitor or on the oscilloscope. The display of the solenoid current (in WPC-300 program) is damped in order to be able to bring out a stable signal. Page 22 of 24 PAM-190-P-*-1010 18.08.2015...
6 Appendix 6.1 Failure monitoring Following possible error sources are monitored continuously: Source Fault Characteristic Command signal LIM command Out of range The output will be switched off and the READY LED flashes. K3 PIN 2 / 4 Command signal 4… 20 mA Out of range or broken wire The output will be switched off and the READY LED flashes.