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B.3 Parameter Table
YASKAWA ELECTRIC
SIEP C710636 02B YASKAWA U1000 Technical Manual
527
t
B
■
U3: Fault History
■
U4: Maintenance Monitors
No. (Addr.)
Name
Description
Analog Output
Level
Unit
Page
U3-01 to
U3-04
(90H to 93H
(800H to
803H))
First to 4th Most Recent Fault
Displays the first to the fourth most recent faults.
No signal output
available
–
–
U3-05 to
U3-10
(804H to
809H)
5th to 10th Most Recent Fault
Displays the fifth to the tenth most recent faults.
After ten faults have occurred in the drive, 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 every time a fault occurs.
No signal output
available
–
–
U3-11 to
U3-14
(94H to 97H
(80AH to
80DH))
Cumulative Operation Time at
1st to 4th Most Recent Fault
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
(80EH to
813H)
Cumulative Operation Time at
5th to 10th Most Recent Fault
Displays the cumulative operation time when the fifth to the tenth most recent faults occurred.
No signal output
available
1 h
–
No. (Addr.)
Name
Description
Analog Output
Level
Unit
Page
U4-01
(4CH)
Cumulative Operation Time
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
(75H)
Number of Run Commands
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
(67H)
Cooling Fan Operation Time
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
(7EH)
Cooling Fan Maintenance
Displays main cooling fan usage time in as a percentage of its expected performance life.
Parameter o4-03 can be used to reset this monitor. The fan should be replaced when this
monitor reaches 90%.
No signal output
available
1%
–
U4-05
(7CH)
Capacitor Maintenance
Displays main circuit capacitor usage time in as a percentage of their expected performance life.
Parameter o4-05 can be used to reset this monitor. The capacitor should be replaced when this
monitor reaches 90%.
No signal output
available
1%
–
U4-06
(7D6H)
Soft Charge Bypass Relay
Maintenance
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. The soft charge bypass
relay should be replaced when this monitor reaches 90%.
No signal output
available
1%
–
U4-08
(68H)
Heatsink Temperature
Displays the heatsink temperature.
10 V: 100
°
C
1
°
C
–
U4-09
(5EH)
LED Check
Lights all segments of the LED to verify that the display is working properly.
No signal output
available
–
–
U4-13
(7CFH)
Peak Hold Current
Displays the highest current value that occurred during run.
No signal output
available
0.01 A
–
U4-14
(7D0H)
Peak Hold Output Frequency
Displays the output frequency when the current value shown in U4-13 occurred.
No signal output
available
0.01 Hz
–
U4-16
(7D8H)
Motor Overload Estimate
(oL1)
Shows the value of the motor overload detection accumulator. 100% is equal to the oL1
detection level.
10 V: 100%
0.1%
–
All Modes
All Modes
All Modes
All Modes
All Modes
All Modes
All Modes
All Modes
All Modes
All Modes
All Modes
All Modes
All Modes
All Modes
All Modes
SIEP_C710636_02B_1_0.book 527 ページ 2015年11月25日 水曜日 午後4時56分