Parameter List
10
10.17 U: Monitors
YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual 605
◆ U4: Maintenance Monitors
No.
(Hex.)
Name Description
MFAO Signal
Level
Ref.
U4-01
(004C)
Cumulative Ope
Time
Shows the cumulative operation time of the drive.
Use parameter o4-01 [Elapsed Operating Time Setting] to reset this
monitor. Use parameter o4-02 [Elapsed Operating Time Selection]
to select the cumulative operation times from:
• The time from when the drive is energized until it is de-energized.
• The time at which the Run command is turned ON.
The maximum value that the monitor will show is 99999. The value
then resets and starts counting again from 0.
Unit: 1 h
Note:
The MEMOBUS/Modbus communication data is shown in 10 h
units. Use register 0099H for data in 1 h units.
No signal output
available
-
U4-02
(0075)
Num of Run
Commands
Shows how many times that the drive has received a Run command.
Use parameter o4-13 [RUN Command Counter @ Initialize] to reset
this monitor. The maximum value that the monitor will show is
65535. The value then resets and starts counting again from 0.
Unit: 1
No signal output
available
-
U4-03
(0067)
Cooling Fan Ope
Time
Shows the cumulative operation time of the cooling fans.
Use parameter o4-03 [Fan Operation Time Setting] to reset this
monitor. The maximum value that the monitor will show is 99999.
The value then resets and starts counting again from 0.
Unit: 1 h
Note:
The MEMOBUS/Modbus communication data is shown in 10 h
units. Use register 009BH for data in 1 h units.
No signal output
available
-
U4-04
(007E)
Cool Fan
Maintenance
Shows the cumulative operation time of the cooling fans as a
percentage of the replacement life of the cooling fans.
Use parameter o4-03 [Fan Operation Time Setting] to reset this
monitor.
Unit: 1%
Note:
Replace the cooling fans when this monitor is 90%.
No signal output
available
-
U4-05
(007C)
CapacitorMainte
nance
Shows the operation time of the electrolytic capacitors for the main
circuit and control circuit as a percentage of the replacement life of
the electrolytic capacitors.
Use parameter o4-05 [Capacitor Maintenance Setting] to reset this
monitor.
Unit: 1%
Note:
Replace the electrolytic capacitor when this monitor is 90%.
No signal output
available
-
U4-06
(07D6)
PreChargeRelay
Mainte
Shows the operation time of the soft charge bypass relay as a
percentage of the replacement life of the soft charge bypass relay.
Use parameter o4-07 [Softcharge Relay Maintenance Set] to reset
this monitor.
Unit: 1%
Note:
Replace the drive when this monitor is 90%.
No signal output
available
-
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