Measuring the signal from the actuator to the control EM-288 PCB Measure the actuator feedback between terminal 8 and 9. At lack of feedback, check cables for errors or replace the actuator. 89 Voltmeter Measuring the con E t M ro -28 l 8 s P i C g B nal Voltmeter 8 12 Measure between terminal 8 (GND) and terminal 12. The measurement must be between 0-10 or 0-20 mA. (Remember to install a resistance if mA is used, and to set the DIP 1 - see Quick guide for further information). The control now compares the control signal with the feedback from the actuator and runs forward/backward until the 2 values are the same. If the stroke length is limited or other parameters are changed, the comparison will be different. Readout of actual values For readout of the actual values, the TR-EM-236 programming unit must be used. Press “Monitor values” and select the value that must be read out: 1. Shows error code: 1, 2, 3 or 4 2. Actual current consumption: 0 - 20A = (0 - 200) 3. Control signal (terminal 12): 0 - 100% (0 - 1000) 4. Actuator feedback (terminal 9): 0 - 100% (0 - 1000) 5. Hour counter: (max 65535 h) 6. Start counter: (max 65535 start) 7. Start counter per 10,000 start: (max 65535) Go to parameter 3 and compare the value in the control signal with parameter 4 (feedback). The values must be the same (+/- 2%) If the system is unstable, adjust parameter 17 to a higher value. If the actuator runs past the requested position, adjust parameter 18 to a higher value. LINAKTHIRDPARTY.COM
Download PDF file