Hello

I used Drive monitor to upolad MM40 backup. and it was successfully connected and uploaded

but there are many missed parameters such as max/min frequency  acc/deacc time.

Any suggestion about the reason

Please check values of p003, p0004. 

p003 = user access level

0= user defined parameters see p0013

1=standard - access to most frequently used parameters.

2=Extended allowas extended access e.g. I/O inverter

3=expert for experst only

4=service password protected.

P0004 - Filters

set = 0 so all parameters will be visible.