Yaskawa iQpump Controller User Manual - Manual (Page 151)

6.7 Troubleshooting
YASKAWA TM.iQp.06 iQpump Controller User Manual 151
6.7 Troubleshooting
Due to problems sucha s parameter setting errors or faulty wiring, the iQpump drive and motor may not operate as expected when the
system is started up. If this occurs, use this section as a reference and apply the appropriate measures.
If a fault is displayed on the digital operator, refer to Table 6.1 .
◆ If the Parameter Cannot Be Set
Use the following information if an iQpump drive parameter cannot be set.
■
The display does not change when the INCREASE and DECREASE keys are pressed.
The following causes are possible.
The iQpump drive is operating (drive mode).
There are some parameters that cannot be set during operation. Remove the run command and then set the parameters.
Parameter write enable is input.
This occurs when “parameter write enable” (set value: 1B) is set for a multi-function digital input terminal (H1-01 to H1-05). If the
parameter write enable input is OFF, the parameters cannot be changed. Turn it ON and then set the parameters.
Passwords do not match. (Only when a password is set.)
If the parameter A1-04 (Password) and A1-05 (Password Setting) numbers are different, the parameters for the initialize mode cannot be
changed. Enter the correct password in A1-04.
If you cannot remember the password, display A1-05 (Password Setting) by pressing the Shift / Reset Key and the MENU Key
simultaneously while in the A1-04 display. Reset the password and input the reset password in parameter A1-04.
■
OPE01 through OPE11 is displayed.
The set value for the parameter is wrong. Refer to 6.4 Operator Programming Errors (oPE) in this chapter and correct the setting.
■
CPF00 or CPF01 is displayed.
This is a digital operator communications error. The connection between the digital operator and the iQpump drive may be faulty.
Remove the digital operator and then reinstall it.
◆ If the Motor Does Not Operate
Use the following information if the motor does not operate.
■
Ensure the digital operator is securely connected to the iQpump drive.
■
The motor does not operate when the HAND key on the Digital Operator is pressed.
The following causes are possible:
The Speed Command (Frequency Reference) is too low.
If the Speed Command (frequency reference) is set below the frequency set in E1-09 (Minimum Output Frequency), the iQpump drive
will not operate.
Raise the Speed Command to at least the minimum output frequency.
■ The motor does not operate when an external run command is input.
The following causes are possible.
The iQpump drive is not in drive mode.
If the iQpump drive is not in drive mode, it will remain in ready status and will not start. Press the MENU key once and press the DATA
/ ENTER key. The iQpump drive is now in drive mode.