Manual – IPOSplus®
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7
Position detection with MQx
Position Detection via Binary Inputs
7.5
Position detection with MQx
7.5.1
Proximity sensor evaluation
The MQx modules allow simple positioning based on the NV2 proximity sensor system.
The two proximity sensors send 24 pieces of angle information per revolution. These are
counted by MQx and stored in the IPOS
plus®
variable H511 (ActPos_Mot) as a position-
ing value. This allows the position to be processed in IPOS
plus®
, which enables, for ex-
ample, the drive to be stopped at a specified position. Creep speed must be used to
reach the exact position. Position control is not available.
7.5.2
DI0 and DI1 terminal assignments
The proximity sensor evaluation is activated by setting the parameters for the two digital
inputs DI0 and DI1 (P600 und P608) to "MQX ENCODER IN". The parameter settings
can be changed using the MOVITOOLS
®
MotionStudio interface or in the initialization
section of IPOS
plus®
. IPOS
plus®
can address any MQx parameters at address 253 using
the Movilink command. The indices of the inputs are 8844
dec
for DI0 (P608) and 8335
dec
for DI1 (P600). Two write accesses are used to transfer the value 32 to the two indices.
The inputs are filtered according to the factory setting with 4 ms. The terminal assign-
ment "MQX ENCODER IN" switches this filter for the proximity sensor evaluation off.
INFORMATION
Only one MOVIMOT
®
can be connected to the MQx fieldbus interface for proximity
sensor evaluation. Only the Movcom command can be used to control the
MOVIMOT
®
.
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