gefran TPD32-EV-...-4B - Speed Reference from Encoder Input (Tach Follower Function)

—————— Instruction manual ——————
221
6.12.5 Speed reference from encoder input (Tach follower function)
I/O CONFIG
Encoder inputs
[1020] Selectenc1
[1021] Selectenc2
[416] Encoder1pulses
[169] Encoder2pulses
[649] Refreshenc1
Parameter description No.
Value
Standard
Conguration
min max
Factory
American
Factory
Standard
Select enc 1
OFF(0)
Speedref1(1)
Speedref2(2)
Rampref1(3)
Rampref2(4)
1020 0 5 OFF(0) OFF(0)
Select enc 2
OFF(0)
Speedref1(1)
Speedref2(2)
Rampref1(3)
Rampref2(4)
1021 0 5 OFF(0) OFF(0)
Encoder 1 pulses
416 600 9999 1024 1024
Encoder 2 pulses
169 150 9999 1024 1024
Refresh enc 1
Enabled(1)
Disabled(0)
649 0 1 Disabled(0) Disabled(0)
Refresh enc 2
Enabled(1)
Disabled(0)
652 0 1 Disabled(0) Disabled(0)
6
5
1
8
9
7
A+
A-
B+
B-
0V
5V
XE1 connector
6
5
1
8
2
7
A+
A-
B+
B-
0V
24
XE2 connector
Encoder 1Encoder 2
Select enc 2
OFF
Select enc 1
OFF
Figure 6.12.5.1: Tach follower
Thiscongurationallowstheuseoftheencoderinputs,asaspeedreference.Comparedtoananaloginput,these
inputshavehigherresolutionandhighernoiseimmunity.
Usingforthispurpousetheencoderinput(XE1orXE2connector),itisnecessarytodenethedestination,
selectingproperlythetypeofspeedreferenceonwhichithastointeract(Ramp ref 1,Speed ref 1,etc.)
Whentheencoderinputisusedasaspeedreferencesource,usingthesameencoderinputasspeedfeedback
isdisallowed.Itisimpossibletocongurethesamespeedreferencetotheencoderinputandananaloginput.
Thefunction“Tachfollower”canbeusedinaccordancewiththetabebelow:
Speed fbk sel [414] Encoder 1 as reference Encoder 2 as reference
Encoder1 Notavailable Notavailable