Motor Ptc Thermal Protection Setting; Ptc Thermal Protection Using Terminal [Rr] - Toshiba TOSVERT VF-AS3 Instruction Manual

Industrial inverter (for 3-phase motors)
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6. 30. 19 Motor PTC thermal protection setting

<F645: Terminal RRPTC trip>
<F646: PTC detection resistance>
<F108: Terminal RR input select>
<F148: Terminal AI4 input select>
<F149: Terminal AI5 input select>
<F637: Terminal AI4 PTC trip>
<F638: Terminal AI5 PTC trip>
■ Function
This function is set to protect the motor from overheating by using PTC, which is integrated in the
monitor.
You can trip the motor. The trip display is "E-32".
■ Parameter setting
Title
Parameter name
F645
Terminal RR PTC trip
F646
PTC detection resistance
F656
PTC detection
temperature
F108
Terminal RR input
F148
Terminal AI4 input select
F149
Terminal AI5 input select
F637
Terminal AI4 PTC trip
F638
Terminal AI5 PTC trip

■ PTC thermal protection using terminal [RR]

Connect PTC between terminals [RR]-[CC].
Set "4", "5", "7", and "9" with <F108: Terminal RR switching>.
In <F645: Terminal RR PTC trip>, when "0: Disabled" is selected, pre-alarm only, and when "1:
Enabled" is selected, pre-alarm and trip are enabled.
F645 : Terminal RR PTC trip
0: Disabled
1: Enabled
Adjustment range
0: Disabled
1: Enabled
100 - 9999
0 - 200
1: Voltage input (0-10V)
2, 3: -
4: PTC input
5: PT100 (2-wire) input
6: -
7: PT100 (2-wire) input
8: -
9: KTY84 input
1: Voltage input (0-10 V)
2: Voltage input (-10 to +10 V)
3: Current input (0-20 mA)
4: PTC input
5: PT100 (2-wire) input
6: PT100 (3-wire) input
7: PT100 (2-wire) input
8: PT1000 (3-wire) input
9: KTY84 input
0: Disabled
1: Enabled
6-147
E6582062
STOP
0.0Hz
14:04
Unit
Default setting
0
3000
°C
90
1
0
0
6. [Advanced] How to use parameters
3
4
6
9

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