KEB COMBIVERT F5, Reference Manual, Page: 159 / 349

159
LE - Encoder Parameters
For encoders whose pulses per revolution exceeds that accepted by the
encoder feedback card, encoder scaling can be enabled. Refer to the example
below and LE09 Encoder 1 Numerator and LE10 Encoder 1 Denominator for
further details.
Setting: Description: NUM
Off The function is not activated. The encoder
pulses per revolution from LE02 is used
directly.
0
Reserved No function 1
LE02 x LE09 / LE10 The LE02 pulses per revolution 2
Default = Off (0)
Example:
An incremental encoder is listed as 36000 ppr. The maximum acceptable
ppr for the incremental encoder feedback interface card is 16384. In
this case, the LE02 Pulse Number can be set to 9000, the LE09 Enc1
Numerator can be set to 4 and the LE10 Enc1 Denominator can be set
to 1. Now, if the encoder scaling is activated by setting LE08 Encoder
Scaling = LE02 x LE09 / LE10, then the encoder pulses per revolution is
scaled back to 9000 x 4 / 1 = 36,000 ppr.
LE08
Encoder Scaling
i
Setting: Description: NUM
Power on A single pole position learned after power on. 2
NOP + Power
on After power on, a single pole position learned be-
fore each run is performed. Encoder 1 Pole Posi-
tion LE06 will update at the beginning of each run. 3
After reset A single pole position learned after reset. 4
NOP + After
reset After reset, a single pole position learned before
each run is performed. Encoder 1 Pole Position
LE06 will update at the beginning of each run. 5
Power on +
After reset A single pole position learned after power on and
reset. 6
NOP + Power
on + After
reset After power on and reset, a single pole position
learned before each run is performed. Encoder 1
Pole Position LE06 will update at the beginning of
each run. 7
Default = Off (0)
LE07
Rotor Detection Mode
(continued)