Roland V-accordion + Solton MS40

[Thomas may]

Hi hope somebody can help me. I have a Roland FR3xb accordion and a Solton MS40 arranger.  Now the problem is I cannot get both to work together I have changed channels on both instruments still no luck.  The right hand on the Roland will trigger the styles also some times the chords will also trigger them.  Hope somebody can help solve this problem.  Many thanks and greetings from Dublin,  Ireland.