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32
7.4.2
Alarms
Interpretation of object 6503h
(assignment bit - meaning, standard = 0000000000000000):
Bit:
15..1
0
Info: co
Position Error
Table 7.11: Alarms - Object 6503h
7.4.3
Warnings
Interpretation of object 6505h
(assignment bit - meaning, standard = 0000000000000000):
Bit:
15
14
13
12
11..1
0
Info: co
Temp. read failed
Undertemp.
Overtemp.
co
Frequency limit
Table 7.12: Warnings
– Object 6505h
7.5
Electronic cam switch ( CAM)
Balluff encoders provide the possibility to configure an electronic cam switch with 8 cams in one single channel.
Every cam is defined by its low and high limit, the hysteresis and the polarity.
7.5.1
CAM-state-register
The cam state register (object 6300h) represents the state of the 8 cam switches, one bit per cam. For example
the cam state register has the value of 89h:
Position
7(MSB)
6
5
4
3
2
1
0(LSB)
Type
CAM 8
CAM 7
CAM 6
CAM 5
CAM 4
CAM 3
CAM 2
CAM 1
Value
1
0
0
0
1
0
0
1
Logic
High
Low
Low
Low
High
Low
Low
High
Table 7.13: CAM-state-register
– Value 89h
That means that the cams 1, 4 and 8 are high and the rest are low. If e.g. the cam 4 toggles to low due to the
change of the position value, the cam state register would become 81h:
Position
7(MSB)
6
5
4
3
2
1
0(LSB)
Type
CAM 8
CAM 7
CAM 6
CAM 5
CAM 4
CAM 3
CAM 2
CAM 1
Value
1
0
0
0
0
0
0
1
Logic
High
Low
Low
Low
Low
Low
Low
High
Table 7.14: CAM-state-register
– Value 81h
The cams are independent to each other so the cam state register can take on 256 combinations to control a
machine.
Summary of Contents for BDG F-NH Series
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