7. Troubleshooting and Maintenance
7-8
②
Is one of the terminal defined as FWD/REV Run Disable ON?
☞
Check one of DIO_01 ~ DIO_07 terminals is defined as “Prohibit FWD” or
“Prohibit REV”. If so, check input terminal status in DIS_01 ~ DIS_03. If
rotating direction is not changed, check the terminal is ON.
6) Keypad or terminal malfunctions.
①
When [REV], [FWD], [STOP] key on the keypad is lit Red or Green,
☞
Refer to 1) if RUN/STOP is not activated by Keypad or Terminal. If setting
change is not available, PAR_04 may set to prohibit parameter write. To
release this setting, enter 12 in PAR_04. If problem persists, contact LS
representatives.
②
When [STOP] key is blinking,
☞
This marks trip condition or BX active status. Check any other trips occur
in DIS_05. Reset the trip and try run. Check BX signal is ON on the
keypad and input terminal signal in DIS_01 ~ DIS_03. Reset BX and try
run.
③
When green lamp on [REV], [FWD] key is blinking,
☞
It marks accel/decel is in operation. If inverter keeps operation in this
condition, it means load capacity calculation is incorrect and exceeds
inverter rating. Refer to No. 16).
7) Operating speed does not change during run.
①
Is FUN_02 speed setting proper?
☞
Speed setting methods in STARVERT-iV5 are Analog input, Keypad and
Option. Select appropriate one among them.
②
Is DIS_01(PreRamp Ref) setting the correct value?
☞
Current speed ref. Values are displayed in DIS_01 ~ DIS_03. Check the
displayed value matches the setting value. If speed is not variable, check
the encoder. Refer to No. 13).
③
Speed setting method is “Keypad” and speed ref displayed DIS_01 ~
DIS_03 is not correct.
☞
Check terminal setting in DIO_01 ~ DIO_07 defined as Multi-step speed
setting.
④
When speed setting method is Analog and DIS_01 ~ DIS_03 display is not
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