Rockwell Automation SP600 User Manual Version 3.0 - Manual (Page 115)

Parameter Descriptions 11-13
• Fan/Pmp V/Hz mode sets a fan load volts per hertz curve profile
exponential to base frequency and linear from base to maximum
frequency). Run boost can offset the low speed curve point.
Sets the highest voltage the drive will output
Sets the maximum allowable frequency the drive will output. Note
that this is not maximum speed, which is set in parameter 82. Refer
to figure 11.4.Maximum Speed (82) + Overspeed Limit (83) must be
≤
to
Maximum Freq (55).
Figure 11.3 – Fan/Pump Curve
Maximum Voltage
Maximum
Frequency
Base Voltage
(Nameplate)
Base Frequency
(Nameplate)
Run Boost
54 Maximum Voltage
Range: (Rated Volts x 0.25) to Rated Volts [0.1 VAC]
Default: Drive Rated Volts
Access: 2 Path: Motor Control>Torq Attributes
See also:
55 Maximum Freq
Range: 5.0 to 400.0 Hz [0.1 Hz]
Default: 130.0 Hz
Access: 2 Path: Motor Control>Torq Attributes
See also: 82, 83
Figure 11.4 – Speed Limits
Allowable Output Frequency Range
Bus Regulation or Current Limit
V
o
l
t
a
g
e
Frequency
Allowable Output Frequency Range
Normal Operation
Allowable Reference Frequency Range
Frequency Trim due to
Speed Control Mode
Max Volts
Motor Volts
Break Volts
Start Boost
Run
0 Min
Speed
Motor
Hz
Max
Speed
Output
Freq Limit
Max
Freq Break
Frequency
Overspeed
Limit