Operating instructions

86 Application manual Positioning 04/08
In setting "11 - RxPDO1.Long1 extrapolated" of parameter
Master Position Source
1122 the system bus synchronization must be set to 1 or 10 to ensure a reliable
function of
Operation Mode 1180.
Operation mode 1180
0 - Off
1)
1 - RxPDO1
2)
2 - RxPDO2
3)
3 - RxPDO3
3)
10 - SYNC
1)
If the error message "F1453 Systembus-Synchronization not activated" is displayed
when the slave drive is started, one of the operation modes 1, 2, 3 or 10 must be
selected.
2)
Synchronization of processing with data telegram or cyclic sending of SYNC tele-
gram.
3)
Not recommended for el. gear because no extrapolation done.
The synchronization of several drives needs high refresh rates to assure optimum
results. Set the corresponding time (i.e.
TxPDO1 Time 931) at the transmit side to
a low value. For the usage of the sync-function at the system bus set
SYNC-Time
919 to a low value.
The bus load of the system bus must have sufficient reserves for proper operation.
Note: The system bus is described in the manuals of the extension modules
with system bus interface.
Block diagram: electronic gear and phasing function
Speed sensor 1
speed
Gear Factor
Numerator
1123
Phasing:
Speed
1126
Phasing:
Acceleration
1127
Phasing:
Offset
1125
Gear Factor
Denominator
1124
Speed sensor 2 / Resolver
speed
f
RxPDO1
f
Master
f
Gear
f
Phasing
s
Master
s
Gear
+
+
+
+
s
Phasing
RxPDO1.Long1
(master position)
Speed sensor 2 / Resolver
position
Speed sensor 1
position
Phasing
Trajectory
generator
(in gearing mode
)
Master Position
Source
1122
Application manual Positioning 04/0886