VFD68 Variable Frequency Drives (575 VAC)
23
P. 36 Frequency Jump 3B: To avoid resonance noise caused by
natural frequency of mechanical system, enter frequency just
above noisy frequency 3.
0 to 400 Hz, 9999 9999
P. 37 Speed Display: Set the drive to display motor in RPMs
(instead of Hz) by entering the maximum rated motor speed
from the motor nameplate. When set to 0, the drive displays
speed in Hz.
0, 0.01–9998 0
P. 68 Retry Wait Time: Defines the time delay (in seconds) before
the drive attempts to restart the motor after a fault shutdown.
0.1–600 seconds 10 seconds
P. 72 PWM Frequency Selection: Allows you to reduce audible
noise by changing the PWM frequency (Hz).
0–15
3
1
P. 73 Analog Input 1 Type: Defines the input signal voltage range
and motor rotation direction.
• 0: 0–5 VDC
• 1: 0–10 VDC
0, 1 0
P. 77 Parameter Write Select: Enables or disables writing
(changing) certain parameters and defines when parameters
may be written.
• 0: write when VFD stopped
• 1: write disabled
• 2: write enabled anytime
0, 1, 2 2
P.1 83 Enable Analog Input 2 (AI2) when terminal MRS is connected
to terminal SD
0–8, 16, 18 4
P.9 02
(screen a)
Analog Input 1: Minimum speed defined as frequency. 0–60 Hz 12.5 Hz
P.902b
(screen b)
Analog Input 1: % of input voltage to start minimum speed
ramp
0–100% 38% (1.90 V)
P.9 03
(screen a)
Analog Input 1: Maximum speed defined as frequency. 1–400 Hz 60 Hz
P.9 03
(screen b)
Analog Input 1: % of input voltage for setpoint (where motor
reaches maximum frequency or speed).
1–100% 54.8% (2.74 V)
P.9 04
(screen a)
Analog Input 2: Minimum speed defined as frequency. 0–60 Hz 12.5 Hz
P.9 04
(screen b)
Analog Input 2: % of input current to start minimum speed
ramp.
0–100% 38% (7.6 mA)
P.905
(screen a)
Analog Input 2: Maximum speed defined as frequency. 1–400 Hz 60 Hz
P.9 05
(screen b)
Analog Input 2: % of input current for setpoint (where motor
reaches maximum frequency or speed).
1–100% 54.8% (11 mA)
1. If P. 32 = 9999, then the speed of the motor controlled by the VFD68 will not drop below P. 2 (minimum motor speed),
regardless of the mode selected.
2. If the VFD68 supply voltage is greater than the motor rating voltage (such as when using a 208 VAC motor with a
230 VAC supply), enter the motor rating voltage for P. 19. This allows the motor to run cooler.
3. A setting value of 0 indicates 0.7 kHz. A setting value of 1 indicates 1 kHz. A setting value of 15 indicates 15 kHz.
Table 16: Parameter Descriptions for VFD68Dxx Drives (Part 2 of 2)
Parameter
Indication
on Monitor
Description Settings Default
Setting
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