Excessive output drive from Powerlab?

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Excessive output drive from Powerlab?

Post by steviekuo » Thu Feb 15, 2018 10:18 pm

I am using PowerLab AO to output 1Hz biphasic pulse through A-M 2200 stimulation isolators. When using one isolator, everything works fine. When two isolators were paralleled to increase the max output current, from time to time, the isolator error light would start to blink indicating excessive input drive. If I unplug or turn-off one of the isolators, the error light will go off immediately. After some period, the labchart will stop sampling and show message that powerlab is not responding, restart is needed. My question is: does paralleling of two isolators ever cause excessive drive from powerlab AO? I am currently using BNC Tee splitter for that purpose. Any thought? Thanks!

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Re: Excessive output drive from Powerlab?

Post by aheinrich » Sun Feb 25, 2018 9:41 pm

Hi there,

This does not appear to be a software issue and will need more direct assistance to understand the hardware configuration. Please contact your local ADInstruments support representative for further assistance: https://www.adinstruments.com/contact

Amy Heinrich
Software Engineer, ADInstruments, New Zealand