DRV10983: Fan/blower not spinning in openloop

Hi, 

 I could not get the blower spinning in open loop with PWM input 

I can't find info on the DIR pin, should it be HIGH or LOW , I need to spin at CCW

Pls help...

Thanks

Stanley

PWM freq : 25kHz

Here are the current blower specs / settings :

Input voltage : 24V

blower is a 3-phase can with 2A  running on CCW mode 

https://www.digikey.my/en/products/detail/nidec-copal-electronics/TF029B-1000-F/7606567

Below are the register output :

I change to PWM input and open loop only, there are no fault code or locks

Reading register: 0x10
BIN: 00001111
HEX: 0x0F
Reading register: 0x1E
BIN: 00000000
HEX: 0x00

Reading register: 0x20
BIN: 01001111
HEX: 0x4F
Reading register: 0x21
BIN: 01001110
HEX: 0x4E
Reading register: 0x22
BIN: 00101010
HEX: 0x2A
Reading register: 0x23
BIN: 00000000
HEX: 0x00
Reading register: 0x24
BIN: 11011000
HEX: 0xD8
Reading register: 0x25
BIN: 11100100
HEX: 0xE4
Reading register: 0x26
BIN: 01111010
HEX: 0x7A
Reading register: 0x27
BIN: 11110100
HEX: 0xF4
Reading register: 0x28
BIN: 01101001
HEX: 0x69
Reading register: 0x29
BIN: 10111001
HEX: 0xB9
Reading register: 0x2A
BIN: 10101101
HEX: 0xAD
Reading register: 0x2B
BIN: 00000011
HEX: 0x03