play MPC samples with external keyboard

Hello
I want to play mpc 5OO' s samples with an external keyboard
(in fact : i want to use mpc as soundloops bank for live acts...)

IT DOESN'T WORK !!

what do I have to do to make it ?

simple feature :
keyboard send only midi channel 1 notes on/off at full level

thanks for explanation

CHAZAM

www.chazam.org

Track params:
Midi Channel = 1