8.10.2 Emulated Encoder Output (EEO)
The drive calculates the motor shaft position from the cyclic- absolute signals of the com-
mutation feedback, generating incremental-encoder compatible pulses or CW/CCW signals
or Pulse/Direction signals from this information.
The resolution and the index (zero) position can be set in WorkBench. The outputs are driven
from an internal supply voltage. Refer to the WorkBench Online Help for more information.
When using a multispeed resolver (more than 2 poles) as commutation feedback, the EEO
will create only one zero pulse per each mechanical revolution of the motor. The zero pulse
is dependent on the motors starting position!
Examples for Master-Slave connection see (
Technical characteristics X22, EEO2
Pulse outputs on the connector X22 are 2 signals, tracks A and B, with 90° phase difference
(i.e. in quadrature, hence the alternative term “A quad B” output).
Electrical Interface: RS-485, max. current 100 mA, the maximum number of connected
slaves is determined by the loading characteristics of the slaves, 32 slaves can be driven
if the input impedance of the bias network is 10kΩ and only one slave has a DC ter-
mination resistor.
Max signal (channel) output frequency: 3 MHz
The pulses per revolution value is settable
Pulse phase shift: 90°±20°
X22
Signals EEO2
Description
A17
AGND
Analog ground
A20
Track A+
EEO2 output, channel A positive
A21
Track A-
EEO2 output, channel A negative
B20
Track B+
EEO2 output, channel B positive
B21
Track B-
EEO2 output, channel B negative
AKD2G-S Installation, Safety 1 | 8 Electrical Installation
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