Toshiba TOSVERT VF-S15 Schnellstartanleitung Seite 49

[Parameter setting] [Parameter setting]
Title Title
Motor electronic-thermal Motor electronic-thermal
 
protection level 1 protection level 1
Electronic-thermal Electronic-thermal
protection characteristic protection characteristic
 
selection selection
Motor electronic-thermal Motor electronic-thermal
f173 f173
protection level 2 protection level 2
Motor 150% overload Motor 150% overload
f607 f607
detection time detection time
Inverter overload detection Inverter overload detection
 
method method
Electronic-thermal memory Electronic-thermal memory
 
  Overload alarm level Overload alarm level
Note) (Only for -W1 model) Note) (Only for -W1 model)
aul must be set to default setting (1: Constant torque characteristic) for the compliance with UL standard. aul must be set to default setting (1: Constant torque characteristic) for the compliance with UL standard.
1) Setting the electronic thermal protection characteristics selection o o l l m m 1) Setting the electronic thermal protection characteristics selection o o l l m m
and motor electronic thermal protection level 1 t t h h r r , 2 f f 1 1 7 7 3 3 and motor electronic thermal protection level 1 t t h h r r , 2 f f 1 1 7 7 3 3
The electronic thermal protection characteristics selection (olm) is used to enable or disable the motor overload trip The electronic thermal protection characteristics selection (olm) is used to enable or disable the motor overload trip
function (ol2) and the overload stall function. function (ol2) and the overload stall function.
While the inverter overload trip (ol1) will be in constantly detective operation, the motor overload trip (ol2) can be While the inverter overload trip (ol1) will be in constantly detective operation, the motor overload trip (ol2) can be
selected using the parameter olm selected using the parameter olm
Explanation of terms Explanation of terms
Overload stall: This is an optimum function for equipment such as fans, pumps and blowers with variable torque Overload stall: This is an optimum function for equipment such as fans, pumps and blowers with variable torque
characteristics that the load current decreases as the operating speed decreases. characteristics that the load current decreases as the operating speed decreases.
When the inverter detects an overload, this function automatically lowers the output frequency before the motor When the inverter detects an overload, this function automatically lowers the output frequency before the motor
overload trip (ol2) is activated. With this function, operation can be continued, without tripping, by operating overload trip (ol2) is activated. With this function, operation can be continued, without tripping, by operating
using a frequency balanced by load current. using a frequency balanced by load current.
Note: Do not use the overload stall function with loads having constant torque characteristics (such as conveyor Note: Do not use the overload stall function with loads having constant torque characteristics (such as conveyor
belts in which load current is fixed with no relation to speed). belts in which load current is fixed with no relation to speed).
[Using standard motors (other than motors intended for use with inverters)] [Using standard motors (other than motors intended for use with inverters)]
When a motor is used in the lower frequency range than the rated frequency, that will decrease the cooling effects for When a motor is used in the lower frequency range than the rated frequency, that will decrease the cooling effects for
the motor. This speeds up the start of overload detection operations when a standard motor is used in order to prevent the motor. This speeds up the start of overload detection operations when a standard motor is used in order to prevent
overheating. overheating.
 Setting of electronic thermal protection characteristics selection olm   Setting of electronic thermal protection characteristics selection olm 
Setting value Setting value
0 0
1 1
2 2
3 3
Function Function
10 – 100 (%) 10 – 100 (%)
Setting Setting
value value
10 – 100 (%) / (A) 10 – 100 (%) / (A)
10 – 2400 (s) 10 – 2400 (s)
0: 150%-60s 0: 150%-60s
1: Temperature estimation 1: Temperature estimation
0: Disabled (thr, f173) 0: Disabled (thr, f173)
1: Enabled (thr, f173) 1: Enabled (thr, f173)
2: Disabled (thr) 2: Disabled (thr)
3: Enabled (thr) 3: Enabled (thr)
10-100 10-100
Overload protection Overload protection Overload stall Overload stall
valid valid
valid valid
invalid invalid
invalid invalid
Adjustment range Adjustment range
Overload Overload
protection protection
0 0 valid valid
1 1 valid valid
Standard Standard
2 2 motor motor invalid invalid
3 3 invalid invalid
4 4 valid valid
VF motor VF motor
5 5 valid valid
(special (special
6 6 invalid invalid
motor) motor)
7 7 invalid invalid
invalid invalid
valid valid
invalid invalid
valid valid
48
13 13
E6582383 E6582383
E6582383
Default Default
setting setting
100 100
Overload Overload
stall stall
invalid invalid
valid valid
invalid invalid
0 0
valid valid
invalid invalid
valid valid
invalid invalid
valid valid
100 100
300 300
0 0
0 0
50 50