How to Configure Auto Mode Start/Stop on Danfoss VLT FC 102 Using Digital Inputs?

Hi every one , i have install danfoss Vlt 102 for high pressure pump and i control the drive with external in put (terminal 12,18 ) and also i have input on terminal ( 12, 27 ) the problem that the drive didnt run in auto mode , i dont know which parameter i should change , i already choose parameter no (8 ) (Select start for a start/stop command. Logic
1=start, logic 0=stop.
(Default: Digital input 18))  . on group parameter (5-1* Digital Inputs).  i hope if some one advice me ,thank you 

Hi,Disable your stop input on terminal 27 by changing parameter 5-12 to no function. Does it go into auto mode when started now?

Thamk you for the reply. A already change the parameter 5-12 to (0) no function ,but same then i change to (2 ) coast inverse, also same .The inverter is in auto mode didnt change to stop or hand its on auto mode, but when i start the unit and the 24v came to inverter no any action happend then the unit stop because the high speed pump not running. The connection was on terminal (12,18,27) there is a jumper at 12 and 27 as per the old VFD. I just get confused why the VFD didnt start at all no any reaction ,when i run local pump run .

Can you provide the relevant schematics and settings?