YASKAWA T1000V, Техническое руководство

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6.5 Alarm Detection
260 YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual
LED Operator Display Minor Fault Name
oH3
Motor Overheat
The motor overheat signal entered to a multi-function analog input terminal exceeded the alarm level
(H3-02 or H3-10 = E).
Cause Possible Solutions
Minor Fault
Output
(H2- †† = 10)
Motor thermostat wiring is fault (PTC
input).
Repair the PTC input wiring. YES
There is a fault on the machine side (e.g.,
the machine is locked up). • Check the status of the machine.
• Remove the cause of the fault.
YES
Motor has overheated.
• Check the load size, accel/decel times, and cycle times.
• Decrease the load.
• Increase accel and decel times (C1-01 to C1-08).
• Adjust the V/f pattern (E1-04 through E1-10). This will mainly involve reducing E1-
08 and E1-10. Note: Do not lower E1-08 and E1-10 excessively, because this reduces
load tolerance at low speeds.
• Check the motor-rated current.
• Enter motor-rated current on motor nameplate (E2-01).
• Ensure the motor cooling system is operating normally.
• Repair or replace the motor cooling system.
YES
LED Operator Display Minor Fault Name
oL3
Overtorque 1
Drive output current (or torque in OLV) was greater than L6-02 for longer than the time set in L6-03.
Cause Possible Solutions
Minor Fault
Output
(H2- †† = 10)
Inappropriate parameter settings. Check parameters L6-02 and L6-03. YES
There is a fault on the machine side (e.g.,
the machine is locked up). • Check the status of the machine.
• Remove the cause of the fault.
YES
LED Operator Display Minor Fault Name
oL4
Overtorque 2
Drive output current (or torque in OLV) was greater than L6-05 for longer than the time set in L6-06.
Cause Possible Solutions
Minor Fault
Output
(H2- †† = 10)
Parameter settings are not appropriate. Check parameters L6-05 and L6-06. YES
There is a fault on the machine side (e.g.,
the machine is locked up). • Check the status of the machine being used.
• Remove the cause of the fault.
YES
LED Operator Display Minor Fault Name
oS
Overspeed (for Simple V/f with PG)
Pulse input (RP) indicates that motor speed feedback exceeded F1-08 setting.
Cause Possible Solutions
Minor Fault
Output
(H2- †† = 10)
Overshoot or undershoot is occurring.
• Adjust the gain by using the pulse train input parameters (H6-02 through H6-05).
• Adjust the speed feedback accuracy.
• Increase the settings for C5-01 (Speed Control Proportional Gain 1) and reduce C5-
02 (Speed Control Integral Time 1).
YES
PG pulse settings are incorrect.
Set the H6-02 (Pulse Train Input Scaling) = 100%, the number of pulses during
maximum motor revolutions.
YES
Parameter settings are inappropriate.
Check the setting for the overspeed detection level and the overspeed detection time
(F1-08 and F1-09).
YES