Lenze SimpleServo 94, User Manual, Page: 22 / 66

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IMS94S-mv1
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5.1.9 P12. Second encoder interface (option module)
SimpleServo drives support second incremental encoder interface to build dual loop
systems. Depending on motor primary feedback type - encoder or resolver - second
encoder could be connected:
• to P12 connector on second encoder interface module if the primary encoder
feedback is connected to the P4 connector on the drive
• to P4 connector on the drive if the motor primary feedback is a resolver and
connected to resolver option module at P11.
Second encoder needs to be enabled using MotionView software. See section “Dual
feedback operation” for details.
WARNING!
Use only +5 VDC encoders. Do not connect any other type of encoder
to the option module otherwise damage to drive’s circuitry may result.
5.2 Digital I/O details
5.2.1 Step & Direction / Master Encoder Inputs (P3, pins 11-14)
You can connect a master encoder with quadrature outputs or a step and direction
pair of signals to control position in step/direction operating mode (stepper motor
emulation). These inputs are optically isolated from the rest of the drive circuits and
from each other. Both inputs can operate from any voltage source in the range of 5 to
24 VDC and do not require additional series resistors for normal operation. See figure
below.
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Timing characteristics for Step And Direction signals
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Timing characteristics for Master Encoder signals
Input type/ output compatibility Insulated, compatible with Single-ended or
differential outputs (5-24 VDC)
Max frequency (per input) 2 MHz
Min pulse width (negative or positive) 500nS
Input impedance (5V applied)
700
Ω
(approx)