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8-18 VS1-MD AC Drive User Manual
The following table shows the fault type while this function is active.
8.9 Parameter Read/Write
8.9.1 Parameter Read
Step 1. Move to H91 code.
Step 2. Press Enter (
) key once. 0 will be displayed.
Step 3. Press Up (
) key once. Rd will be displayed.
Step 4. Press Enter (
) key twice. Rd will be displayed
Step 5. H91 is displayed when Parameter read is finished.
No. Display Fault type Diagnosis
1 UPHF Switch above IGBT’s U phase fault
Contact sales representatives.
2 UPLF Switch below IGBT’s U phase fault
3 vPHF Switch above IGBT’s V phase fault
4 vPLF Switch below IGBT’s V phase fault
5 WPHF Switch above IGBT’s W phase fault
6 WPLF Switch below IGBT’s U phase fault
7 UWSF Output short between U and W
Check for a short in inverter output
terminal, motor connection
terminal or the proper motor
connection.
8 vUSF Output short between U and V
9 WvSF Output short between V and W
10 UPGF Ground fault at U phase
Check for ground fault occurring at
inverter output cable or motor or
motor insulation damage.
11 vPGF Ground fault at V phase
12 WPGF Ground fault at W phase
13 UPOF Output open at U phase
Check for proper connection of the
motor to the inverter output or
proper motor connection.
14 vPOF Output open at V phase
15 WPOF Output open at W phase
Group Display Parameter Name Setting Range Default Unit
Function
group 2
H91 [Parameter Read] 1 0 to 1 0
H92 [Parameter Write] 1 0 to 1 0
Used to read/write Inverter Parameters using remote keypad.
!
ATTENTION:Take caution when Parameter write (H92) is
executed. By doing this, parameters in inverter are cleared
and parameters in remote keypad are copied to inverter.