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AS-i Speed Monitor
AS-i data
9.2
Examples:
•
Safety speed axis 1 = e.g. Address 17
•
Safety speed axis 2 = e.g. Address 17
Stopped is also the safety state.
Stopped is required separately:
•
Safety stopped axis 1 = e.g. Address 18
•
Safety stopped axis 2 = e.g. Address 18
Code sequence for safe speed and safe stop.
The rotation direction must also be monitored:
•
Right rotation direction axis 1 = e.g. Address 19
•
Right rotation direction axis 2 = e.g. Address 19
Code sequence for safe speed, safe stop and right rotation.
9.3
AS-i data of the diagnostic slave
The diagnostic slave provides 2 analog input data, the current frequency of the
2 axes,
0 ... 200,000 Hz). For diagnostics all safety signals are also available in the diag-
nostic slave.
VBA-2E-KE4-ENC-S
DO3
reserved
DI3
S-7.5 data
1.
The input bits always refer to the PLC frequency; the stop frequency plays no role here. For a better
diagnostics of short switch-offs, a turn-on and switch-off delay time (holding time) for this bit can be configured
via the vendor object 23.
Analog Ch. 0:
frequency axis 1/10 Hz
Analog Ch. 1:
frequency axis 2/10 Hz
30
scaled
in
10 Hz
DO2
mute SaW
DI2
S-7.5 data
increments
(0 ... 20,000
DO1
S-7.5 data
DI1
1
f (axis 2) < SLS
corresponds
to
DO0
S-7.5 data
DI0
1
f (axis 1) < SLS
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