Encoder feedback, Speed control, Encoder type – Rockwell Automation 1336Z SPIDER - FRN 2.xxx-5.xxx User Manual
Page 121: Encoder ppr, Maximum speed, Motor poles

Programming
7–49
Encoder
Feedback
Encoder feedback is not available with the 1336 spider drive. The parameters are
listed for reference only.
[Speed Control]
This parameter selects the type of speed modulation active
in the drive.
This parameter cannot be changed while the drive is
running.
Important: If encoder feedback closed loop speed
regulation is required, “Encoder Fdbk” must be selected.
Parameter Number
77
Parameter Type
Read and Write
Factory Default
“No Control”
Units
Display Drive
“No Control” 0
Frequency regulation
“Slip Comp” 1
Slip compensation
“Speed Droop” 2
Negative slip compensation
“Phase Lock” 3
Enable phase lock to pulse input
“Encoder Fdbk” 4
Encoder feedback-closed loop
“Droop + Reg” 5
Enc. fdbk.-closed loop w/ active
droop
“P Jump” 6
Traverse function
“Process PI” 7
Closed loop PI control
[Encoder Type]
This parameter selects the feedback encoder signal type.
The drive can accept single channel (Pulse) or dual
channel (Quadrature) signals.
This selection must match the type of encoder being used.
If “Pulse” is selected and a dual channel encoder is wired,
the feedback indication will be incorrect by a factor of 2
and no direction indication will be offered. If “Quadrature”
is selected and a single channel encoder is wired, the
feedback value will always be zero.
This cannot be changed while drive is running.
Parameter Number
152
Parameter Type
Read and Write
Factory Default
“Quadrature”
Units
Display Drive
“Pulse” 0
Single channel encoder
“Quadrature” 1
Dual channel encoder
[Encoder PPR]
This parameter contains the scaling factor for encoder
feedback speed regulation. Enter the actual encoder
pulses per revolution
Parameter Number
46
Parameter Type
Read and Write
Display Units / Drive Units
Factor / Pulses per Rev
Factory Default
1024 PPR
Minimum Value
1
Maximum Value
4096
[Maximum Speed]
This Parameter sets the output frequency at full frequency
reference for:
1.Encoder feedback speed regulation.
2.All analog inputs to TB2 (remote pot, 0-10V & 0-20 mA).
NOTE: [Maximum Freq.] must be raised to allow operation
or modulation above [Maximum Speed].
Parameter Number
151
Parameter Type
Read and Write
Display Units / Drive Units
1 Hertz / Hertz x 10
Factory Default
400 Hz
Minimum Value
0 Hz
Maximum Value
400 Hz
[Motor Poles]
This parameter contains the number of motor magnetic
poles. This value translates output frequency into actual
motor RPM during closed loop operation. It is calculated
from [Motor NP Hertz] and [Motor NP RPM].
Parameter Number
153
Parameter Type
Read Only
Display Units / Drive Units
1 Poles / Poles