No
Function
36
Analog output control (terminal B1)
Fr:
Voltage proportional to motor speed
Ld:
Voltage proportional to motor load
A:
Voltage proportional to output current
Por:
Voltage proportional to output power
USEr: User programmable
A change to Pr 36 is set by pressing the
NOTE
No
Function
37
Maximum switching frequency
3:
3kHz
6:
6kHz
12:
12kHz
18:
18kHz
18kHz is not available on VFD67 size B, C and D 400V units and size D 200V units.
NOTE
With drive firmware V01.08.00 onwards, the 400V size C drive will have an actual switching
NOTE
frequency of 3kHz when the output frequency is below 6Hz.
No
Function
38
Autotune
0: No autotune
1: Non-rotating static autotune
2: Rotating autotune
When a rotating autotune is selected, the drive will accelerate the motor up to
maximum speed in Pr 02.
WARNING
The motor must be at a standstill before a non-rotating autotune is initiated.
NOTE
The motor must be at a standstill and unloaded before a rotating autotune is initiated.
NOTE
Once a rotating autotune has been initiated (Pr 38 = 2), it must be completed before the
NOTE
drive will operate normally. If the rotating autotune is not completed (through the drive
being disabled or a trip occurring), the drive will only run at the autotune speed (
rated speed reference).
No
Function
39
Motor rated frequency
Enter the motor rated frequency (taken from the motor name plate).
Defines the voltage to frequency ratio applied to the motor.
No
Function
40
Number of motor poles
Auto: Automatically calculates the number of motor poles from the settings of Pr 07
and Pr 39
2P:
Set for a 2 pole motor
VFD67 Size A to D Getting Started Guide
Issue Number: 1
Range
Fr, Ld, A, Por, USEr
MODE key on exit from parameter edit mode.
M
Range
3, 6, 12, 18 kHz
Range
0 to 2
Range
0.0 to 1500.0 Hz
Range
Auto, 2P, 4P, 6P, 8P
www.johnsoncontrols.com
Defaults
Type
Fr
RW
Defaults
Type
3
RW
Defaults
Type
0
RW
2
/
3
2
/
3
Defaults
Type
60.0
RW
Defaults
Type
Auto
RW
35
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