Axor Microspeed Plus 140, Service Manual, Page: 58 / 64

58
Service Manual
Plus
MICROSPEED
7.1 Encoder Feedback
(option)
Options
The encoder feedback is an option of the MICROSPEED PLUS
drive.
This allows you to adjust the motor speed,using a signal coming
from an encoder with two channels.
This solution saves the use of a tachogenerator,using the same signal
requested for the position control.
The performance of the drive at low speeds are improved with the
high encoder resolution. It is reccomended that you use an encoder
with resolution of at least 500 imp/rev. An auxiliary power supply
+5 V or + 12 V is avalaible to supply the encoder.
Don’t exceed the load declared.
If the encoder’s absorption is unknown,please check it by a
milliamperometer connected in series to +Vs.
If the value is higher, please use an external power supply.
Encoder inputs Push-Pull ,Line-driver, Open-C.
Power supply levels From 0V to 5 min. 0V to 24V max.
Max. frequency 250 Khz
Encoder power supply S13 Close Vs=+5V Max 220 mA
S13 Open Vs=+12V Max.220 mA
Operating temperature 0 - 40 C°
Tecnical specification
Code Description Pin out
11(+Vs) Encoder power 5 /12V Output
12(GND) GND Power supply Input/Output
13(CHA) Input channel A encoder Input
14(CHB) Input channel B encoder Input
Terminals description
Code Description Standard
S11 Encoder Feedback Enable Close
S13 Chose Power Supply Close
S13 Insert internal res. pull-up (Inp.CHA) Open
S14 Insert internal res. pull-up (Inp.CHB) Open
Solder bridge description