Installation manual

Configuration Mode (ConF)
90 S1A28692 03/2010
Parameters described in this page can be accessed by:
ttd [Motor therm. level]
0 to 118% 100%
T
Trip threshold for motor thermal alarm (logic output or relay). See page 237.
JPF [Skip Frequency]
0 to 599 Hz 0 Hz
T
Skip frequency. This parameter helps to prevent prolonged operation within an adjustable range around the regulated frequency.
This function can be used to help to prevent a speed, which would cause resonance, being reached. Setting the function to 0
renders it inactive. See page 168
.
JF2 [Skip Frequency 2]
0 to 599 Hz 0 Hz
T
2nd skip frequency. This parameter helps to prevent prolonged operation within an adjustable range around the regulated
frequency. This function can be used to help to prevent a speed, which would cause resonance, being reached. Setting the
function to 0 renders it inactive. See page 168
.
JF3 [3rd Skip Frequency]
0 to 599 Hz 0 Hz
T
3rd skip frequency. This parameter helps to prevent prolonged operation within an adjustable range around the regulated
frequency. This function can be used to help to prevent a speed, which would cause resonance, being reached. Setting the
function to 0 renders it inactive. See page 168
.
JFH [Skip.Freq.Hysteresis]
0.1 to 10 Hz 1 Hz
g
T
Parameter visible if at least one skip frequency [Skip Frequency] (JPF), [Skip Frequency 2] (JF2) or
[3rd Skip Frequency] (JF3) is different from 0.
Skip frequency range: between (JPF – JFH) and (JPF + JFH) for example.
This adjustment is common to the 3 frequencies (JPF, JF2, JF3). See page 168
.
LUn [Unld.Thr.Nom.Speed]
20 to 100% of
[Rated mot. current] (nCr)
60%
g
T
Underload threshold at rated motor frequency ([Rated motor freq.] (FrS) page 74), as a % of the rated motor torque.
Visible only if [Unld T. Del. Detect] (ULt) page 251
is not set to 0.
See page 251
.
LUL [Unld.Thr.0.Speed]
0 to [Unld.Thr.Nom.Speed] (LUn) 0%
g
T
Underload threshold at zero frequency, as a % of the rated motor torque.
Visible only if [Unld T. Del. Detect] (ULt) page 251
is not set to 0.
See page 251
.
rMUd [Unld. Freq.Thr. Det.]
0 to 599 Hz 0 Hz
g
T
Underload detection minimum frequency threshold. See page 251.
Srb [Hysteresis Freq.Att.]
0.3 to 599 Hz 0.3 Hz
g
T
Maximum deviation between the frequency reference and the motor frequency, which defines steady state operation.
See page 251
.
FtU [Underload T.B.Rest.]
0 to 6 min 0 min
g
T
Minimum time permitted between an underload being detected and any automatic restart.
In order for an automatic restart to be possible, the value of [Max. restart time] (tAr) page 234
must exceed that of this
parameter by at least one minute. See page 252
.
LOC [Ovld Detection Thr.]
70% to 150% of
[Rated mot. current] (nCr)
110%
g
T
Overload detection threshold, as a % of the rated motor current [Rated mot. current] (nCr). This value must be less than the
limit current in order for the function to work. See page 253
.
Visible only if [Ovld Time Detect.] (tOL) is not set to 0.
This parameter is used to detect an "application overload". This is not a motor or drive thermal overload.
FtO [Overload T.B.Rest.]
0 to 6 min 0 min
g
T
Minimum time permitted between an overload being detected and any automatic restart.
In order for an automatic restart to be possible, the value of [Max. restart time] (tAr) page 234
must exceed that of this
parameter by at least one minute. See page 253
.
Code Name / Description Adjustment range Factory setting
DRI- > CONF > FULL > SET-
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: [phone]-Outside Local Area: [phone]-www.stevenengineering.com