11
12
13
14
15
16
17
18
19
20
243
11. (H) Protective Function Parameters
11.1 Motor overheat protection (electronic thermal O/L relay)
• For the terminal used for the THP signal output, set "8" (positive logic) or "108" (negative logic) in any parameter from
Pr.190 to Pr.196 (Output terminal function selection)
.
NOTE
• Changing the terminal assignment using
Pr.190 to Pr.196 (Output terminal function selection)
may affect the other
functions. Set parameters after confirming the function of each terminal.
External thermal relay input (OH signal, E.OHT)
External thermal relay input connection diagram
• The External thermal relay input (OH) signal is used when using the external thermal relay or the thermal protector built
into the motor to protect the motor from overheating.
• When the thermal relay is activated, the inverter output is shut off by the external thermal relay (E.OHT).
• To input the OH signal, set "7" in any parameter from
Pr.178 to Pr.189 (Input terminal function selection)
to assign the
function.
• Vector-control-dedicated motors (SF-V5RU) are equipped with thermal protectors.
Connecting the SF-V5RU thermal protector
*1
Connect the recommended 2 W 1 k
Ω
resistor between terminals PC and OH. (Refer to the Instruction Manual (Connection).)
NOTE
• Changing the terminal assignment using
Pr.178 to Pr.189 (Input terminal function selection)
may affect the other functions.
Set parameters after confirming the function of each terminal.
Overheat protection to match the characteristic of the motor (Pr.600 to
Pr.604, Pr.692 to Pr.696)
• The activation level of the electronic thermal O/L relay can be varied to match the motor temperature characteristic.
• The electronic thermal O/L relay operation level can be set with the combination of three points (
Pr.600, Pr.601
), (
Pr.602,
Pr.603
), (
Pr.604, Pr.9
). Two or more points are required for setting.
OFF
ON
100%
85%
Time
ON
Electronic thermal
relay function
operation level
Electronic thermal O/L
relay alarm
(THP)
Inverter
U
V
W
OH
SD
Thermal relay protector
Motor
M
G1
G2
OH
SD
PC
2W1kΩ
Inverter
SF-V5RU
∗1
Содержание FR-E800
Страница 17: ...16 1 Introduction 1 3 Related manuals MEMO ...
Страница 51: ...50 2 Basic Operation 2 8 I O terminal function assignment MEMO ...
Страница 89: ...88 3 Parameters 3 4 Parameter list by function group number MEMO ...
Страница 135: ...134 5 Speed Control 5 9 Troubleshooting in the speed control MEMO ...
Страница 153: ...152 6 Torque Control 6 7 Troubleshooting in torque control MEMO ...
Страница 195: ...194 8 E Environment Setting Parameters 8 18 Current average value monitor signal MEMO ...
Страница 237: ...236 10 D Operation Command and Frequency Command 10 6 Operation by multi speed setting MEMO ...
Страница 339: ...338 13 T Multi Function Input Terminal Parameters 13 9 Start signal operation selection MEMO ...
Страница 455: ...454 16 G Control Parameters 16 13 Speed smoothing control MEMO ...
Страница 481: ...480 18 Appendix 18 4 Parameters functions and instruction codes under different control methods MEMO ...