ABB AC500 PLC - Group Parameters of the Cam Switch

Group Parameters of the Cam Switch
Name Value Internal value Internal value,
type
Default
numOfUsed-
Cams
1
)
0 ... 32
128...160
0 ... 32
218...160
WORD 0
resolution
2
)
0 ... 2
-1
0 ... 2
-1
DWORD 36000
zeroShift
3
)
0 ... 2
-1
0 ... 2
-1
DWORD 0
EncoderBitReso-
lution
4
)
8 ... 32 8 ... 32 WORD 18
Reserve - - WORD -
1
) The parameter numOfUsedCams defines the interrupt cycle time (Therefore, it takes effect to
the accuracy of the track) and the behaviour of the module if the DC information is lost.
Parameter setting
for numOfUsed-
Cams
Number of cams
used
Interrupt cycle time Behaviour if DC
information is lost
0 0 50 µs Module changes to
"safe-operational"
state; the outputs are
activated trough the
user program
1...8 1...8 80 µs
9...16 9...16 100 µs
17...32 17...32 200 µs
128 0 50 µs Module keeps in
"operational" state;
the outputs are acti-
vated trough the user
program
129...136 1...8 80 µs Module keeps in
"operational" state;
the cam switch out-
puts are activated
according to an inter-
polated timing infor-
mation
137...144 9...16 100 µs
145...170 17...32 200 µs
2
) The parameter resolution defines the angle resolution of the track. The value gives the
number of increments related to 360°; e. g. the value 36,000 corresponds to an angle resolution
of 0.01°.
3
) The parameter zeroShift defines the zero shift. With it the encoder can be adjusted to the
mounting position. The value of zeroShift is set in encoder-increments. It is not assigned to the
parameter resolution of the cam switch.
4
) The parameter EncoderBitResolution defines the resolution of the used encoder (in bits), e. g.
with the default setting 18 bits the encoder has 196,608 divisions.
Device Specifications
Communication Interface Modules (S500) > EtherCAT
2019/04/17 3ADR010121, 13, en_US 843