YASKAWA A1000 Technical Manual page 141

FbH
FbL
Hbb
HbbF
HCA
LT-1
LT-2
LT-3
LT-4
oH2
oH3
oH5
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oL3
oL4
oL5
PASS
PGo
YASKAWA ELECTRIC TOEP C710616 41B YASKAWA AC Drive - A1000 Quick Start Guide
Excessive PID Feedback
The PID feedback input is higher than the level set in b5-36 for longer than the time set in b5-37, and b5-12
is set to 1 or 4.
PID Feedback Loss
The PID feedback input is lower than the level set in b5-13 for longer than the time set in b5-14, and b5-12
is set to 1 or 4.
Safe Disable Signal Input
Both Safe Disable Input channels are open.
Safe Disable Signal Input
One Safe Disable channel is open while the other one is closed.
Current Alarm
Drive current exceeded overcurrent warning level (150% of the rated current).
Cooling Fan Maintenance Time
The cooling fan has reached its expected maintenance period and may need to be replaced.
Note: An alarm output (H2-oo = 10) will only be triggered if H2-oo = 2F.
Capacitor Maintenance Time
The main circuit and control circuit capacitors are nearing the end of their expected performance life.
Note: An alarm output (H2-oo = 10) will only be triggered if H2-oo = 2F.
Soft Charge Bypass Relay Maintenance Time
The DC bus soft charge relay is nearing the end of its expected performance life.
Note: An alarm output (H2-oo = 10) will only be triggered if H2-oo = 2F.
IGBT Maintenance Time (50%)
IGBTs have reached 50% of their expected performance life.
Note: An alarm output (H2-oo = 10) will only be triggered if H2-oo = 2F.
Heatsink Overheat
oH
The temperature of the heatsink exceeded the overheat pre-alarm level set to L8-02 (90-100 °C). Default
value for L8-02 is determined by drive capacity (o2-04).
Drive Overheat Warning
"Drive Overheat Warning" was input to a multi-function input terminal, S1 through S8 (H1-oo= B).
Motor Overheat
The motor overheat signal entered to a multi-function analog input terminal exceeded the alarm level (H3-02,
H3-06 or H3-10 = E).
Motor Overheat (NTC Input)
The motor temperature exceeded the level set to L1-16 (or L1-18 for motor 2)
Overtorque 1
Drive output current (or torque in OLV, CLV, AOLV/PM, CLV/PM) was greater than L6-02 for longer than
the time set in L6-03.
Overtorque 2
Drive output current (or torque in OLV, CLV, AOLV/PM, CLV/PM) was greater than L6-05 for longer than
the time set in L6-06.
Mechanical Weakening Detection 1
Overtorque occurred, matching the conditions specified in L6-08.
Overspeed (for Control Mode with PG)
oS
The motor speed feedback exceeded the F1-08 setting.
DC Bus Overvoltage
The DC bus voltage exceeded the trip point.
ov
• For 200 V class drives: approximately 410 V
• For 400 V class drives: approximately 820 V (740 V when E1-01 is less than 400)
• For 600 V class drives: approximately 1040 V
MEMOBUS/Modbus Comm. Test Mode Complete
PG Disconnect (for Control Mode with PG)
Detected when no PG pulses are received for a time longer than setting in F1-14.
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5.3 Alarm Detection
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