For most ATV31 and ATV312 installations, the following parameters may need to be set. Actual values used will depend on the application requirements.
Consult the appropriate programming manual for details.
ATV31 drives have up and down arrows that are used to navigate and change values.
The ATV312 has a dial that is used for the same function. Pressing in on the dial is how you enter a parameter and how you save it to memory.
DRC Menu Parameter Description Comments
BFR Standard Motor frequency Set to 50Hz or 60 Hz depending on motor info
UNS Rated Motor Voltage Set to motor voltage
FRS Rated Motor Frequency Set to motor frequency - usually identical to BFR
NCR Rated Motor Current (FLA) Set to motor FLA
NSP Rated Motor Speed (RPM) Set to motor RPM
TFR Max Frequency Sets maximum value for HSP, also used to scale the analog output when set to output frequency. Typically set to match motor frequency.
UFT Motor control type Sets how the drive controls the motor. Most applications will work fine with default of n: Sensorless Vector.
SET Menu Parameter Description Comments
ACC Acceleration Time in seconds to ramp the motor from a stop to the FRS (Motor frequency)
DEC Deceleration Time in seconds to ramp the motor from FRS to a stop
LSP Low Speed Minimum speed in Hz that the motor will run (can not be set above the HSP setting)
HSP High Speed Maximum speed in Hz that the motor will run (can not be set below LSP or above TFR)
ITH Motor Thermal (FLA) Setting for the overload protection of the motor. Usually set to the motor FLA. Could be set higher if operation within the Service Factor is desired.
UFR Voltage boost Provides additional voltage at low speeds. Can improve start when dealing with high inertial loads
CLI Current limitation Sets the Maximum current the drive will allow to go to the motor in normal operating conditions
IO Menu Parameter Description Comments
TCC 2/3 wire type Determines how the drive start/stop function will behave and what terminals are used.
TCT 2 wire type When in 2 wire control (TCC=2C) this parameter determines how the start command is issued. When set to trn (Default) the start will only happen on the off to on transition of the run signal
RRS Reverse assign Sets a Logic input to command Reverse direction. Default is LI2.
R2 Relay 2 assignment Sets the behavior of the R2 relay. Default is NO. Typically changed to RUN to provide running status.ATV31 Programming manual ATV312 Programming manual