![YASKAWA U1000 Series Скачать руководство пользователя страница 371](http://html.mh-extra.com/html/yaskawa/u1000-series/u1000-series_technical-manual_907114371.webp)
6.5 Alarm Detection
YASKAWA ELECTRIC
SIEP C710636 02B YASKAWA U1000 Technical Manual
371
T
rou
bl
es
hoot
ing
6
Digital Operator Display
Minor Fault Name
oS
Overspeed
The motor speed feedback exceeded the F1-08 setting.
Cause
Possible Solutions
Minor Fault
(H2-01 = 10)
Overshoot is occurring.
• Increase the settings for C5-01 (Speed Control Proportional Gain 1) and reduce C5-02 (Speed Control Integral
Time 1).
• If using a Closed Loop Vector mode enable Feed Forward Control and perform Inertia Auto-Tuning.
YES
Incorrect speed feedback scaling if terminal RP is
used as speed feedback input in V/f control
• Set H6-02 to value of the speed feedback signal frequency when the motor runs at the maximum speed.
• Adjust the input signal using parameters H6-03 through H6-05.
Incorrect PG pulse number has been set
Check and correct parameter F1-01.
Inappropriate parameter settings.
Check the setting for the overspeed detection level and the overspeed detection time (F1-08 and F1-09).
Digital Operator Display
Minor Fault Name
ov
Control Circuit Overvoltage
Voltage in the control circuit exceeded the trip point.
For 200 V class: approximately 450 V
For 400 V class: approximately 900 V
Cause
Possible Solutions
Minor Fault
(H2-01 = 10)
Surge voltage present in the drive input power.
Voltage surge can result from a thyristor convertor and a phase advancing capacitor operating on the same drive
input power system.
YES
Drive input power voltage is too high.
• Check the voltage.
• Lower drive input power voltage within the limits listed in the specifications.
The capacity of the input power supply is too small.
Use a power supply that has at least twice the input capacity of the drive.
The input power supply repeatedly turned on and off
over a short period of time.
Implement countermeasures so that chattering does not occur for the input power supply.
An I/O terminal is loose.
Check the tightening torque of the I/O terminals.
There is a phase loss or an imbalance in the
interphase voltages of the input power supply.
Check the status of the input power supply and eliminate phase losses and imbalance.
Digital Operator Display
Minor Fault Name
PASS
MEMOBUS/Modbus Comm. Test Mode Complete
Cause
Possible Solutions
Minor Fault
(H2-01 = 10)
MEMOBUS/Modbus test has finished normally.
This verifies that the test was successful.
No output
Digital Operator Display
Minor Fault Name
PGo
PG Disconnect (for Control Mode with PG)
Detected when no PG pulses are received for a time longer than setting in F1-14.
Cause
Possible Solutions
Minor Fault
(H2-01 = 10)
PG cable is disconnected.
Reconnect the cable.
YES
PG cable wiring is wrong.
Correct the wiring.
PG encoder does not have enough power.
Make sure the correct power supply is properly connected to the PG encoder.
Brake is holding the PG.
Ensure the brake releases properly
Digital Operator Display
Minor Fault Name
PGoH
PG Hardware Fault (detected when using a PG-X3 option card)
PG cable has become disconnected.
Cause
Possible Solutions
Minor Fault
(H2-01 = 10)
PG cable is disconnected.
Reconnect the cable. Check the setting of F1-20.
YES
Digital Operator Display
Minor Fault Name
rUn
Motor Switch during Run
A command to switch motors was entered during run.
Cause
Possible Solutions
Minor Fault
(H2-01 = 10)
A motor switch command was entered during run.
Change the operation pattern so that the motor switch command is entered while the drive is stopped.
YES
Digital Operator Display
Minor Fault Name
SE
MEMOBUS/Modbus Communication Test Mode Error
Note:
This alarm will not trigger a multi-function output terminal that is set for alarm output (H2-
= 10).
Cause
Possible Solutions
Minor Fault
(H2-01 = 10)
A digital input set to 67H (MEMOBUS/Modbus
test) was closed while the drive was running.
Stop the drive and run the test again.
YES
Digital Operator Display
Minor Fault Name
SrC
Phase Order Detection Fault
The phase rotation direction for the input power supply changed.
Cause
Possible Solutions
Minor Fault
(H2-01 = 10)
An input power supply wiring terminal is loose.
Investigate and correct the cause and then reset the fault.
Refer to
Diagnosing and Resetting Faults on page 382
.
YES
The fluctuation in the voltage of the input power
supply is too large.
SIEP_C710636_02B_1_0.book 371 ページ 2015年11月25日 水曜日 午後4時56分