Lenze 8400 TopLine - Manual (Page 1495)

Lenze · 8400 TopLine · Reference manual · DMS 6.0 EN · 06/2014 · TD05/TD14
1495
19 Function library
19.1 Function blocks
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
19.1.76.6 Offset setting
If the time to synchronicity is too long or the slave drive must not be operated oversynchronously,
either the acceleration can be adapted or the touch probe initiator can be shifted. Since this is only
possible to a limited extent due to construction conditions, in this case the better solution is
selecting a virtual angular offset.
• In order to reach angle synchronicity, the difference between created setpoint and actual angle
must be zero:
Behaviour without offset
If the actual angle starts with an offset = 0, a higher difference between setpoint angle and actual
angle develops:
[19-32] Example: Without offset selection (offset = 0)
 Difference between setpoint angle and actual angle (ϕ
DIFF
)
t
0
= touch probe event
t
2
= synchronicity reached
ϕ
DIFF
ϕ
SET
ϕ
ACT –
0
= =
j
t
TRUE
FALSE
bSync
t
v
nIn_v
t
j
SET
j
ACT
Œ
t
2
t
0