Page 4–34
DURApulse GS4 AC Drive User Manual – 1st Ed, Rev A - 10/20/2017
Chapter 4: AC Drive Parameters
Type Hex Addr Dec Addr
P0.02 Motor 1 Base Frequency
R/W 0002 40003
Range/Units (Format: 16-bit unsigned) Default
0�00~600�00 Hz
(Format: 16-bit unsigned)
60�00
The value of this parameter should be set according to the base frequency of the motor as
indicated on the motor nameplate. The output Volts per Hertz ratio is established by the Motor 1
Maximum Output Voltage (P0.00) divided by the Motor 1 Base Frequency (P0.02).
Type Hex Addr Dec Addr
P0.03 Motor 1 Rated RPM
♦R/W 0003 40004
Range/Units (Format: 16-bit unsigned) Default
0 to (120 x P0�02/P0�09)-1
(Format: 16-bit unsigned)
1710 (60Hz 4-pole)
1410 (50Hz 4-pole)
Set the rated speed (rpm) of the motor according to the value indicated on the motor nameplate.
For a given motor pole setting (P0.09), Motor 1 Rated RPM (P0.03) can only be decreased from the
motor Base RPM defined by “Base RPM = (120 x Freq/# of Poles)-1.”
(Pole setting is P0.09 for Motor 1 or P0.18 for Motor 2)
•
The # of poles must be adjusted down before you can increase the value in P0�03�
•
Rated RPM must be adjusted down before you can increase number of poles�
Type Hex Addr Dec Addr
P0.04 Drive Maximum Output Frequency
R/W 0004 40005
Range/Units (Format: 16-bit unsigned) Default
0~600.00 Hz for GS4 models ≤ 75hp (55kW)
0~400�00 Hz for GS4 models > 75hp (55kW)
(Format: 16-bit unsigned)
50�00/60�00
This parameter determines the GS4 drive Maximum Output Frequency, which is used to set the
desired maximum for the specific application. All of the GS4 drive frequency command sources
(analog inputs 0 to +10V, 4 to 20mA, 0 to 20mA, and ±10V) are scaled to correspond to the output
frequency range.
For models above 55kW(75hp), the setting range is 0.00~400.00 Hz.
WARNING: The MAxIMuM OuTpuT FRequeNcy pARAMeTeR (p0.04) shOuld NeveR exceed The
MAxIMuM RpM RATING FOR The MOTOR yOu ARe usING. IF ThIs INFORMATION Is NOT ReAdIly AvAIlAble,
cONsulT yOuR MOTOR MANuFAcTuReR.
•
This value cannot be set lower than Motor 1 Rated RPM (P0�03)�
•
This parameter, along with P0�02 and P0�03, determines the Maximum Output Frequency of the
GS4 Drive� The Maximum Output Frequency can be calculated as follows:
Motor1 Max out Freq [P0.04] =
(Mtr Max rPM [FroM Motor naMePlate]) / (Mtr1 rated rPM [P0.03]) x (Mtr1 Base Freq [P0.02])
•
If an output limit based on maximum output speed is desired, use the following equation to
determine the corresponding value for Motor Maximum RPM:
Motor1 Max rPM =
(Mtr1 Max out Freq [P0.04]) / (Mtr1 Base Freq [P0.02]) x (Mtr1 rated rPM [P0.03])
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