Mitsubishi Electric FR-V5AX, Инструкция по эксплуатации

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14
THERMISTOR INTERFACE
5.3 Parameter setting
The following parameters are provided for use of the thermistor interface.
5.4 Motor thermal relay alarm
(1) When Pr. 407 = "0 to 100"
Normally, set 30s in Pr. 407. If the response level to a motor temperature is low, make adjustment to
decrease the setting.
•
Detection of a 145°C (293°F) or higher motor temperature continuously for 10s results in a motor thermal
relay alarm (E.THM), shutting off the output.
•
Detection of a -30°C (-22°F) or lower motor temperature during operation results in a motor thermal
relay alarm (E.THM), shutting off the output.
During a stop, a motor thermal relay alarm (E.THM) does not occur.
•
The OH terminal (thermal relay protector input) is invalid.
(2) When Pr. 407 = "9999"
A motor thermal relay alarm (E.THM) is not detected by the FR-V5AX.
Parameter Name
Factory
setting
Setting
range
Minimum
input
increments
Remarks
407 Motor temperature detection filter 9999 0 to 100s, 9999 1s 9999: No function
925 Motor temperature detection calibration 100% 0 to 200% 0.1%
CAUTION
The vector inverter motor with thermistor does not have a thermal relay protector. When using this
type of motor, always set a value other than "9999" in Pr. 407 "motor temperature detection filter".
If the setting remains "9999", motor protection cannot be provided.