50
DANGER
[Check of wiring]
Wiring is checked after checking that the inverter and the CHG lamp of a VFDB2009-Z board have gone out.
Failure to do so may cause an electric shock.
9.3
Reset
[In the case of FF1(
Abnormalities of main circuit)
FF2(
Cooling fin overheating
) FF4(
Over voltage of 200V series
)]
The protection mode of DB unit is held until a power supply is lost. Reset in the protection mode of DB unit
turns OFF the power supply of DB unit.
Protection mode will be cleared, if the power supply of DB unit is
turned off once and a power supply is turned ON again. In holding protected operation, it prepares a hold
circuit in an external circuit.
When the protection of FF4 operates and the cause is a setting mistake in power supply voltage series
selection, after setting up F20 correctly, the power supply of DB unit is turned off, and a power supply is
turned on again.
[
In the case of FF3(
Abnormalities of preset value
)
]
The protection display of FF3 (abnormalities of preset value) is not cleared even if it turns off the power
supply of DB unit. There is the necessity for initialization of a preset value in clearing the protection display
of FF3. Initialize a preset value according to the following procedures.
Pushing each button of "UP", "DOWN", and "FNC/SET" is continued simultaneously.
The button of "DOWN" and "FNC/SET" is detached in the state where each button is pushed by .
A display switches from a protection display to F10 setting mode. Each preset value before
initialization is recorded. The preset value of Vdc display offset in F40 setting mode is changed into
"FF."
※
Do not push the "FNC/SET" button after having changed setting.
※
Refer to "5.1.3 Operation method of display for indication" for operation of a display for indication,
refer to "5.4.5F40 (The display gain /offset hand adjustment mode of D.C. voltage)" for F40 setting
mode.
The power supply of DB unit is turned OFF.
Initialization is completion above. If a power supply is turned ON again, a protection display will be cleared
and a preset value will be changed into an initial value. After initialization certainly perform various setup.
The display gain / offset adustment of D.C. voltega sets up the value indicated on the label stuck on RY1
(refer to Figure 5.1) on a VFDB2009-Z board by "5.4.5. F40(The display gain / offset hand adjustment mode
of D.C. voltage)"
Operation of this initialization is returned to the initial value before adjusting the preset value of DB unit.
Therefore, do not usually perform initialization operation.
B
Summary of Contents for VFDB2009 Series
Page 1: ...VFDB2009 Operation Manual...
