36 ADL500 • Quick installation guide - Specifications and connection
(8) Repeat Encoder (TTL line-driver) (ADL510-530-550)
ADL500 have an incremental encoder output with TTL Line Driver levels to be used to repeat the servomotor feedback
device.
This function is performed via HW and an encoder output can be repeated with a programmable divider.
The encoder output signals are available on the XER connector:
Figure 7.3.10: Repeat Encoder
20
21
22
23
B- out
B+ out
A- out
A+ out
(*)
XER
2
Channels _______________________________ A+ A-, B+ B-, differential line drivers, optoisolated.
Max frequency __________________________ 200 kHz
Number of impulses ______________________ 1/1-1/2-1/4-1/8 repeat (default 1/1)
Electrical interface ________________________ TTL (ref. GND) Ulow ≤ 0.5V Uhigh ≤ 2.5V
Load capacity ___________________________ TTL 20mA for each channel
Cable length ____________________________ max 50m
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