E-stop Problem + more

Hi,
Finally I got my RTlinux 2.0 & emc configured with STG 2 card w/
nikki denso drives & 2.1Amp AC servo motors.

I ran testing in emc and motor run fine.

1) But I can't get out of ESTOP mode and can't do the machine on.
Do i have to do connection for it?

2) also i can't figure out what should i write in (emc.ini)
COUNTS_PER_REV = ?

my encoder is mounted on the back of motor (no gearing) and it says
P/R - 1000 , when i test by rotating motor shaft by hand with stg2
dos software it counts 4000

3) the motor rotates very slow at 0v ,when I checked the DAC0 signal
on P3 from stg2 it shows 0.1~0.15(approx) voltage accros it.

4) where do i set emc axis limits in ini file

thanks ,
Imran