Installation manual

Configuration Mode (ConF)
92 S1A28692 03/2010
Parameters described in this page can be accessed by:
Motor control
The parameters in the [MOTOR CONTROL] (drC-) menu can only be modified when the drive is stopped
and no run command is present, with the following exceptions:
• [Auto tuning] (tUn) page 100, which may cause the motor to start up.
• Parameters containing the sign T in the code column, which can be modified with the drive running or
stopped.
Code Name / Description Adjustment range Factory setting
FULL [FULL] (continued)
drC- [MOTOR CONTROL]
bFr [Standard mot. freq]
[50 Hz IEC] (50)
50
60
This parameter modifies the presets of the following parameters: [High speed] (HSP) page 75
, [Freq. threshold] (Ftd) page
89
, [Rated motor volt.] (UnS), [Rated motor freq.] (FrS) and [Max frequency] (tFr).
[50 Hz IEC] (50): IEC
[60 Hz NEMA] (60): NEMA
tFr [Max frequency]
10 to 599 Hz 60 Hz
The factory setting is 60 Hz, or preset to 72 Hz if [Standard mot. freq] (bFr) is set to 60 Hz.
The maximum value is limited by the following conditions:
It must not exceed 10 times the value of [Rated motor freq.] (FrS).
Ctt [Motor control type]
[Standard] (Std)
UUC
Std
Note: Select law before entering parameter values.
[SVC V] (UUC): Sensorless vector control with internal speed loop based on voltage feedback calculation. For applications
needing high performance during starting or operation.
[Standard] (Std): U/F 2 points (Volts/Hz) without internal speed loop. For simple applications that do not require high
performance. Simple motor control law keeping a constant Voltage Frequency ratio, with a possible adjustment of the curve
bottom. This law is generally used for motors connected in parallel. Some specific applications with motors in parallel and high
performance levels may require [SVC V] (UUC).
Note: U0 is the result of an internal calculation based on motor parameters and multiplied by UFr (%). U0 can be adjusted by
modifying UFr value.
Voltage
Frequency
FrS
UnS
U0
DRI- > CONF > FULL > DRC-
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: [phone]-Outside Local Area: [phone]-www.stevenengineering.com