Instruction Manual

Programming 7–49
Encoder
Feedback
Encoder feedback is not available with the 1336 spider drive. The parameters are
listed for reference only.
[Speed Control]
Thisparameterselectsthetypeofspeedmodulationactive
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]
Thisparameterselects thefeedbackencoder signaltype.
The drive can accept single channel (Pulse) or dual
channel (Quadrature) signals.
Thisselectionmustmatchthetypeofencoderbeingused.
If“Pulse”isselectedand adualchannelencoder iswired,
the feedback indication will be incorrect by a factor of 2
and nodirection indicationwill 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]
ThisParametersetstheoutputfrequencyatfullfrequency
reference for:
1.Encoder feedback speed regulation.
2.Allanalog inputstoTB2 (remotepot,0-10V &0-20mA).
NOTE:[MaximumFreq.]mustberaisedtoallowoperation
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