Jeio tech Lab companion SI-300 Operating Instruction page 49

(3) Shaker
Phenomenon
If the shaker stops
operation by START/STOP
When the shaker speed
is up or down,
display has
symptoms. .
Page 48
Check point
Check Sync Parameter is no.
(Reference Page 36 ~ 37)
the Check the unit location and
any Power.
Settlement
Select Sync Parameter is "yes"or Press
Shaker I/O Switch to operate.
Provide the main volt.