u
U3: Fault History
No.
(Addr.
Hex)
Name
Description
Analog Output
Level
Unit
U3-01 to
U3-04
(90 to 93
(800 to
803))
First to 4th Most Recent
Fault
All Modes
Displays the first to the fourth most recent faults.
No signal output
available
–
U3-05 to
U3-10
(804 to
809)
5th to 10th Most Recent
Fault
All Modes
Displays the fifth to the tenth most recent faults.
After ten faults, data for the oldest fault is deleted. The most recent fault
appears in U3-01, with the next most recent fault appearing in U3-02. The
data is moved to the next monitor parameter each time a fault occurs.
No signal output
available
–
U3-11 to
U3-14
(94 to 97
(80A to
80D))
Cumulative Operation
Time at 1st to 4th Most
Recent Fault
All Modes
Displays the cumulative operation time when the first to the fourth most
recent faults occurred.
No signal output
available
1 h
U3-15 to
U3-20
(80E to
813)
Cumulative Operation
Time at 5th to 10th Most
Recent Fault
All Modes
Displays the cumulative operation time when the fifth to the tenth most
recent faults occurred.
No signal output
available
1 h
u
U4: Maintenance Monitors
No.
(Addr.
Hex)
Name
Description
Analog Output
Level
Unit
U4-01
(4C)
Cumulative Operation
Time
All Modes
Displays the cumulative operation time of the drive. The value for the
cumulative operation time counter can be reset in parameter o4-01. Use
parameter o4-02 to determine if the operation time should start as soon as
the power is switched on or only while the Run command is present. The
maximum number displayed is 99999, after which the value is reset to 0.
No signal output
available
1 h
U4-02
(75)
Number of Run
Commands
All Modes
Displays the number of times the Run command is entered. Reset the
number of Run commands using parameter o4-13. This value will reset to
0 and start counting again after reaching 65535.
No signal output
available
1 Time
U4-03
(67)
Cooling Fan Operation
Time
All Modes
Displays the cumulative operation time of the cooling fan. The default value
for the fan operation time is reset in parameter o4-03. This value will reset
to 0 and start counting again after reaching 99999.
No signal output
available
1 h
U4-04
(7E)
Cooling Fan Maintenance
All Modes
Displays main cooling fan usage time as a percentage of its expected
performance life. Parameter o4-03 can be used to reset this monitor.
No signal output
available
1%
U4-05
(7C)
Capacitor Maintenance
All Modes
Displays main circuit capacitor usage time as a percentage of their expected
performance life. Parameter o4-05 can be used to reset this monitor.
No signal output
available
1%
U4-06
(7D6)
Soft Charge Bypass Relay
Maintenance
All Modes
Displays the soft charge bypass relay maintenance time as a percentage of
its estimated performance life. Parameter o4-07 can be used to reset this
monitor.
No signal output
available
1%
U4-07
(7D7)
IGBT Maintenance
All Modes
Displays IGBT usage time as a percentage of the expected performance
life. Parameter o4-09 can be used to reset this monitor.
No signal output
available
1%
U4-08
(68)
Heatsink Temperature
All Modes
Displays the heatsink temperature.
10 V: 100 °C
1 °C
U4-09
(5E)
LED Check
All Modes
Lights all segments of the LED to verify that the display is working
properly.
No signal output
available
–
A.15 U: Monitors
302
YASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual
Summary of Contents for A1000 HHP
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