Edwards nEXT730D Instruction Manual page 41

Turbomolecular pumps
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Object name
Command
Analogue signal op-
!S871
tions
?S871
Electronic braking
!S872
options
?S872
Close vent valve
!C875
Valve 1 type
!S877
?S877
Valve 2 type
!S878
?S878
Service status
?V881
Controller run time
?V882
B8J200880_D
300812671_002_C3
B8J200880_D - Technical data
Parameter range
Factory set-
ting
0
0
1
2
3
4
0
0
1
1
-
0
0
1
0
0
1
32 bits
-
0..999999
-
0..999999
Page 41
Data type
Units
decimal
-
-
decimal
decimal
-
decimal
-
decimal
-
hex
flags
decimal
hours
decimal
hours
Comments
Analogue output = measured speed
Analogue output = measured power
Analogue output = measured motor
temp.
Analogue output = measured control
temp.
Analogue output = measured bearing
temp.
Electronic braking = disabled
Electronic braking = enabled. Refer to
Electronic braking
on page 17
Closes the vent valve for delayed start
and overrides the current vent option.
There is no open vent valve command
but the stop command (!C852 0) will
clear the override.
Normally Open Valve
Normally Closed Valve
(power cycle is required)
Normally Open Valve
Normally Closed Valve
(power cycle is required)
Service status word
Hours run by controller
Hours until controller service due
08/2021 - ©Edwards Limited

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