YASKAWA Z1000U Technical Manual page 237

u
Motor Does Not Rotate Properly after Pressing AUTO Button or after Entering External
Run Command
n Motor Does Not Rotate
Cause
The drive is not in the Drive Mode.
was pushed.
HAND
Auto-Tuning has just completed.
A Fast Stop was executed and has
not yet been reset.
Settings are incorrect for the source
that provides the Run command.
There is faulty wiring in the control
circuit terminals.
The drive has been set to accept the
frequency reference from the
incorrect source.
The terminal set to accept the main
speed reference is set to the incorrect
voltage and/or current.
Selection for the sink/source mode
and the internal/external power
supply is incorrect.
Frequency reference is too low.
Multi-function analog input is set up
to accept gain for the frequency
reference, but no voltage (current)
has been provided.
OFF
was pressed when the
drive was started from a REMOTE
source.
Motor starting torque is too low.
Frequency reference value is too low
or the drive does not accept the value
entered.
YASKAWA SIEP YAIZ1D 01C Z1000U HVAC MATRIX Drive Bypass Technical Manual
• Check if the DRV light on the HOA keypad is lit.
• Enter the Drive Mode to begin operating the motor.
Stop the drive and check if the correct frequency reference source is selected. If the operator keypad shall be the
source, the LO/RE button LED must be on. If the source is REMOTE, it must be off.
Take the following steps to solve the problem:
•
Push .
HAND
• When Auto-Tuning completes, the drive is switched back to the Programming Mode. The Run command will
not be accepted unless the drive is in the Drive Mode.
• Use the HOA keypad to enter the Drive Mode.
Reset the Fast Stop command.
Check parameter Z1-08 (Run Command Selection).
Set Z1-08 so that it corresponds with the correct Run command source.
0: HOA keypad
1: Control circuit terminal (default setting)
2: MEMOBUS/Modbus communications
3: Option card
• Check the wiring for the control terminal.
• Correct wiring mistakes.
• Check the input terminal status monitor (U1-10).
Check parameter b1-01 (Frequency Reference Selection 1).
Set b1-01 to the correct source of the frequency reference.
0: HOA keypad
1: Control circuit terminal (default setting)
2: MEMOBUS/Modbus communications
3: Option card
If the frequency reference is set at terminal A1, check parameter H3-01 for the correct signal level selection. If
terminal A2 is used, check parameter H3-09. If terminal A3 is used, check parameter H3-06.
A1, A2, and A3 Input Signal Selection on page
Check wire jumper connection between terminals SC and SP.
Check the frequency reference monitor (U1-01).
• Check the multi-function analog input settings.
• Check if analog inputs A1 or A2 are set for frequency reference gain (H3-02, H3-10 = 1). If so, check if the
correct signal is applied to the terminal. The gain and the frequency reference will be 0 if no signal is applied to
the gain input.
• Check if H3-02 and H3-10 have been set to the proper values.
• Check if the analog input value has been set properly. (U1-13 and U1-14)
•
OFF
Pressing will decelerate the drive to stop.
• Switch off the Run command and then re-enter a new Run command.
•
OFF
Set o2-02 to 0 to disable
Refer to Motor Performance Fine-Tuning on page
Enter a value that is above the minimum output frequency determined by E1-09.
6.9 Troubleshooting without Fault Display
Possible Solutions
Refer to The Drive and Programming Modes on page
Refer to The Drive and Programming Modes on page
73.
.
200.
86.
86.
Refer to Terminals
6
237