KEB COMBIVERT F5-A Applications Manual page 278

Speed measurement
Time for speed calc. (Ec.03, Ec.13)
This parameter defines the time over which the speed average value is determined. Thereby the resolution of
the speed measurement is defined simultaneously:
Value Scan time
0
1
2
3
4
5
6
7
8
9
When using other line numbers:
Speed resolution =
Rotation change (Ec.06, Ec.16)
A rotation change for encoder input 1 can be executed with Ec.06 bit 0...1 and for encoder input 2 with Ec.16.
A system inversion can be activated with bit 4 (value 16). With the system inversion it is possible to run the
motor in reverse direction with positive setting at the shaft, without changing the hardware.
The following adjustments are possible:
Value Function
Direction of rotation
0 no change
1 Inverted
2 depends on the sign of the actual frequency (initiator)
3 depends on track B (initiator terminal 4)
4-15 reserved
Encoder system
0 no
16 Inverted
Page 7.11 - 12 COMBIVERT F5-A, -E, -H
Ec.03, Ec.13: Speed sampling time
Speed resolution when using an incremental encoder with 2500 pulses
0,5 ms 12 rpm
1 ms 6 rpm
2 ms 3 rpm
4 ms 1,5 rpm (factory setting)
8 ms 0,75 rpm
16 ms 0,375 rpm
32 ms 0,1875 rpm
64 ms 0,09375 rpm
128 ms 0,046875 rpm
256 ms 0,0234375 rpm
Specified speed resolution x 2500
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Ec.06, Ec.16: Encoder track change
Line number
© KEB, 2012-10