L-9517-9563-06-A_Data_sheet_ATOM_en.pdf - 第30页
30 A TOM miniature encoder system 3-state alarm ouput Differentially tr ansmitted signals forced open circuit f or >15 ms when alar m conditions valid. Alarm 1 Differential line driven alarm output (Ri digital interf…
29 ATOM miniature encoder system
Set-up signal voltage proportional to incremental signal amplitude.
Set-up (ACi interfaces and Ri digital interfaces)
Set-up
1
(Ti digital interfaces only)
Voltage at X
1
100%0
0
Signal level
1
Set-up signal as shown is not present during calibration routine.
Voltage at X
3.3V (nom)
50% 70% 100%0
0
Signal level
Between 50% and 70% signal level, X is a duty cycle.
Time spent at 3.3V increases with incremental signal level.
At >70% signal level X is nominal 3.3V.
30 ATOM miniature encoder system
3-state alarm ouput
Differentially transmitted signals forced open circuit for >15 ms when alarm conditions valid.
Alarm
1
Differential line driven alarm output (Ri digital interfaces and Ti digital interfaces)
E
>15 ms
Interface model Alarm asserted when
Ri0004
• < 40% signal
• Overspeed
Ri0008
Ri0020
Ri0040
Ri0100
• < 20% signal
• > 130% signal
Ri0200
Ri0400
Interface model Alarm asserted when
Ti
• < 20% signal
• > 135% signal
• Overspeed
1
Inverse signals not shown for clarity.
(ACi interfaces, Ri digital interfaces, and Ti digital interfaces)
31 ATOM miniature encoder system
Scale period
2 - 20μm
4 - 40μm
Head type
F - FPC: for use with FPC variant ACi or customer PCB
T - Cabled: interboard connector (for use with cable variant ACi, customer PCB, Ri or Ti interfaces)
D - Cabled: D-type connector
Head gain setting
Cable length
000 - FPC
020 - 200mm
030 - 300mm
050 - 500mm
080 - 800mm
100 - 1000mm
150 - 1500mm
200 - 2000mm
300 - 3000mm
500 - 5000mm
ATOM 4 F 0 - 000
ATOM readhead
1
RKLF linear and RKLF40 partial arc.
Head gain
setting
RTLF /
RKLF
1
(tape scale)
RCLC
(glass spar)
40 µm rotary discs (mm) 20 µm rotary discs (mm)
< 20 20 25, 27, 30 > 30 30 36 50, 56, 68 108
0
✔
1
✔ ✔ ✔
2
✔ ✔
3
✔ ✔
4
✔ ✔