YASKAWA A1000 Series Quick Start Manual page 111

FbL
Hbb
HbbF
HCA
LT-1
LT-2
LT-3
LT-4
oH
oH2
oH3
oL3
oL4
oL5
PASS
PGo
PGoH
rUn
TrPC
YASKAWA ELECTRIC TOEP C710616 21C YASKAWA AC Drive - A1000 Quick Start Guide
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-
Capacitor Maintenance Time
The main circuit and control circuit capacitors are nearing the end of their expected performance life.
Note: An alarm output (H2-
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-
IGBT Maintenance Time (50%)
IGBTs have reached 50% of their expected performance life.
Note: An alarm output (H2-
Heatsink Overheat
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-
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).
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: approximately 410 V
For 400 V class: approximately 820 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.
PG Hardware Fault (detected when using a PG-X3 option card)
PG cable has become disconnected.
Motor Switch during Run
A command to switch motors was entered during run.
MEMOBUS/Modbus Communication Test Mode Error
SE Note: This alarm will not trigger a multi-function output terminal that is set for alarm output (H2-
10).
IGBT Maintenance Time (90%)
IGBTs have reached 90% of their expected performance life.
= 10) will only be triggered if H2-
= 10) will only be triggered if H2-
= 10) will only be triggered if H2-
= 10) will only be triggered if H2-
5 Troubleshooting
= 2F.
= 2F.
= 2F.
= 2F.
= B)
=
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