Tunze Streams not controlled by P4

Hello guys,
Need a little help here

Setting up 2x6105 Streams in addition to my 4 MP40’s but seems like there is a problem to control Tunze’s. I set up permanent opposite option with Sunis wave, assigned 1-10v and so on . I see pumps are changing speed in GCC but when i put my hand a front of the pump i feel constant flow without and changes . Please see my screen shots, where is my error?
https://uploads.tapatalk-cdn.com/202...37ed17cda0.jpg
https://uploads.tapatalk-cdn.com/202...1d22e00d98.jpg
https://uploads.tapatalk-cdn.com/202...864d1085a5.jpg


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Have you changed the mode to "external control" on the Tunze Turbelle Controller?

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Originally Posted by Thilo

Have you changed the mode to "external control" on the Tunze Turbelle Controller?

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Yes, of course... Both pumps react to feed mode or no current . Seems that both pumps working at the same rate, constant flow...