The bits for the control command word 1 are defined as follows:
Start VFD（enable when jog is disable）
Stop according to the preset deceleration
time(enable when jog is disable)
Coast to stop and VFD display external
fault
Set the operating direction when run
command is enable
No action when bits for jog forward and
reverse are enable at the same time,and jog
stop when both are disable at the same time.
The bit5~bit0 of control word 1 are enable
when this bit is enable.
Host computer control word 1
enable
Selection bit of host computer control word
1
Host computer control word 1
disable
Selection bit of main reference
Selection bit of fault reset
Note:
（1）The host computer control word(control word1 and control word 2) is enable when set ―Methods of inputting
operating commands‖ to ―communication control‖.The control word 1 is enabled when the bit7 of control word 1 is
enable.And bit5~bit0 are enable when the bit6 of control word 1 is enable.
（2）Processing of fault and alarm in host computer:when VFD is failure,all the command of control word 1 and
control word 2,except fault reset command,are disable,it need to reset fault firstly before sending other
commands.When the alarm happens,the control words is still enable.
The bits definitions of control word 2 are shown as follows:
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