Edwards STP-iS2207 Series - 5.4.20.2 Second Speed Selection

STP-iS2207 Series Turbomolecular Pump
MT-89E-001-C
Page 123
5
SERIAL COMMUNICATION PROTOCOL
Parameter Item Data format Remark
1 Optional function
number
16-bits hexadecimal
coded ASCII
0014 hex
2 Second speed setting
(Unit: Hz)
16-bits hexadecimal
coded ASCII
*1
3 Second speed option
setting
16-bits hexadecimal
coded ASCII
0000 hex：DISABLE
00FF hex：ENABLE
*1
This value can be changed in the range from half of the rated rotational speed to the rated rotational speed. When the
parameter value is larger than the rated rotational speed, it is automatically set to the rated rotational speed. When the
parameter value is smaller than half of rated rotational speed, it is automatically set to half of rated rotational speed.
Example:
Second speed setting
: 0190hex = 400 Hz = 24000 rpm
Second speed option setting : 0000hex = DISABLE
Parameter 1 2 3
ASCII
0 0 1 4
0 1 9 0
0 0 0 0
HEX
30 30 31 34
30 30 39 30
30 30 30 30
5.4.20.2 Second speed selection
The normal rating speed setting or second rating speed setting can be selected in the normal state.
When using this function, set the second speed option to the "ENABLE".
Parameter Item Data format Remark
1 Optional function
number
16-bits hexadecimal
coded ASCII
0015 hex
2 Second speed
selection
16-bits hexadecimal
coded ASCII
0000 hex: Normal rating speed setting
0001 hex: Second rating speed setting
Example:
Second speed selection : 0000
hex
= Normal rating speed setting
Parameter 1 2
ASCII
0 0 1 5 0 0 0 0
HEX
30 30 31 35 30 30 30 30