KEB COMBIVERT F5 MULTI Applications Manual page 293

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Positioning and Synchronous Control
Example 3
Pic. 6.11.6.c
Reference point approach example 3
Limit switch left
t
X2A.15
v
Signal at X2A.15
1
0
Signal at X2A.11
0
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KEB Antriebstechnik, 2002
All Rights reserved
With two limit switches and one reference point switch; approaching of the the reference
point switch against the preferred direction; reference point approach with approaching
the reference mark of the encoder.
ï Terminal X2A.14 = Limit switch right (di.19 = 32)
ï Terminal X2A.15 = Limit switch left (di.20 = 64)
ï Terminal X2A.11 = Reference point switch (di.12 = 67108864)
ï Terminal X2A.10 = Start Reference point approach (di.11 = 134217728)
ï Reference speed = -100 rpm with counter-clockwise rotation (PS.21=-100)
If the zero impulse is not be aprroached (PS.14 Bit 2 = off), only the reference point
switched is cleared and the drive is then stopped.
Vref = -100 rpm
1
Output position
(t0)
Start
ref.-approach
Reaching the reference
Name: Basis
KEB COMBIVERT F5-M / S
Functional Desription
Position after reference
point approach
PS.14 Bit 3 = right
t
2
X2A.11
Clear the reference
limit switch with
0.25* PS.21
limit switch (t2)
Overtravelling of
reference point switch
Limit switch right
X2A.14
turn back of
zero encoder
t
t
t
Date
Chapter
Section
6
11
06.05.04
6
Page
11

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