m200 slotDIN 981 Slotted Round Lock Nut. Slotted Round Lock Nuts, also named Round lock nut, Slotted Round nuts, Shaft lock nuts, made of steel, M10-M200 from China lock nuts manufacturer.Option module in option slot 1 has changed: Option slot 1 on the drive is a different type to that installed when parameters were last saved on the drive. SL.Er: ... Get your faulty M200 Series