KEB COMBIVERT F4-F Applications Manual page 209

Synchronous Control
Example 3
Fig. 6.10.7.b Reference point approach example 3
1: Original positioning
2: Brought in position at limit switch
3: Brought in position at reference switch
4: Position after reference point approach
2 1 3 4
X2.4 X2.5
A: Starting reference point approach
B: Brought in position at limit switch
C: Brought in position at reference switch
D: Reference switch cleared, drive
reverses and reference switch is
approached again in preferred direction
E: Reference switch cleared
F: Encoder to reference marking
© KEB Antriebstechnik, 1999
All Rights reserved
With two limit switches and one reference point switch; approach of the reference point
switch against the preferred direction; reference point run with approach of the reference
marking of the encoder.
• Terminal X2.3 = limit switch right (di.11 = 16)
• Terminal X2.4 = limit switch left (di.12 = 17)
• Terminal X2.5 = reference point switch (di.3 = 12)
• Reference speed -100 min
• Starting of reference point approach with X1.7 (di.5 = 10) or by bus / PC with
parameter Pd.1 = 2 (Pc.10 = 0)
If the zero pulse shall not be approached (Pc.10 = 2), then only the reference point switch
is cleared and the drive stops then.
v
REF
X2.3
Name: Basis
KEB COMBIVERT F4-F
Functional Description
-1 with counter-clockwise rotation (Pc.14 = -100)
+v
A B
REF
Pc.14
0,25xPc.14
Pc.14
-v
REF
X2.4
1
0
X2.5
1
0
ANTRIEBSTECHNIK
C D E F
Date Chapter Section
6 10
15.03.99
6
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