YASKAWA L1000A Quick Start Manual page 139

Digital Operator Display
dEv
EF
EF0
EF3
EF4
EF5
EF6
EF7
EF8
Hbb
HbbF
HCA
LT-1
LT-2
LT-3
LT-4
oH
oH3
oL3
oL4
oS
YASKAWA ELECTRIC TOEP C710616 38H YASKAWA AC Drive-L1000A Quick Start Guide
Speed Deviation (when using a PG option card)
The deviation between the speed reference and speed feedback is greater than the setting in F1-10 for
longer than the time in F1-11.
Up/Down Command Error
Both forward run and reverse run closed simultaneously for over 0.5 s.
Option Card External Fault
An external fault condition is present.
External fault (input terminal S3)
External fault at multi-function input terminal S3.
External fault (input terminal S4)
External fault at multi-function input terminal S4.
External fault (input terminal S5)
External fault at multi-function input terminal S5.
External fault (input terminal S6)
External fault at multi-function input terminal S6.
External fault (input terminal S7)
External fault at multi-function input terminal S7.
External fault (input terminal S8)
External fault at multi-function input terminal S8.
Safe Disable Circuit Fault Signal (H1-HC, H2-HC) Release
Both Safe Disable Input channels are open.
Safe Disable Circuit Fault Signal (H1-HC, H2-HC) Release
One Safe Disable channel is open while the other one is closed.
High 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- = 10) will only be triggered if H2- = 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- = 10) will only be triggered if H2- = 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- = 10) will only be triggered if H2- = 2F.
IGBT Maintenance Time (90%)
IGBTs have reached 90% of their expected performance life.
Note: An alarm output (H2- = 10) will only be triggered if H2- = 2F.
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).
Motor Overheat Alarm (PTC thermistor input)
• The motor overheat signal to analog input terminal A1 or A2 exceeded the alarm detection level.
• Detection requires multi-function analog input H3-02 or H3-10 be set to "E".
Overtorque Detection 1
Drive output current (or torque in OLV, CLV, CLV/PM) was greater than L6-02 for longer than the time
set in L6-03.
Overtorque Detection 2
Drive output current (or torque in OLV, CLV, CLV/PM) was greater than L6-05 for longer than the time
set in L6-06.
Overspeed (for Control Mode with Encoder)
The motor speed feedback exceeded the F1-08 setting.
Minor Fault Name
<1>
<1>
5 Troubleshooting
5
137