Parameter List
11
11.17 U: Monitors
YASKAWA SIEPC71061737D GA800 Drive Technical Reference 653
No.
(Hex.)
Name Description MFAO Signal Level
U4-06
(07D6)
PreChargeRelayMainte
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%.
10 V: 100%
U4-07
(07D7)
IGBT Maintenance
Shows the operation time of the IGBTs as a percentage of the replacement life of the IGBTs.
Set parameter o4-09 [IGBT Maintenance Setting] to reset this monitor.
Unit: 1%
Note:
Replace the drive when this monitor is 90%.
10 V: 100%
U4-08
(0068)
Heatsink Temperature
Shows the heatsink temperature of the drive.
Unit: 1 °C
10 V: 100 °C
U4-09
(005E)
LED Check
Turns on the LED Status Ring and all of the keypad LEDs to make sure that the LEDs operate
correctly.
Note:
A damaged LED Status Ring board will prevent an accurate estimate of the internal status of the
drive. Do not use only the LED Status Ring to estimate the status of the drive and motors.
1. Set o2-24 = 0 [LED Light Function Selection = Enable Status Ring & Keypad LED].
2. Push when U4-09 is the top monitor shown on the keypad.
All LEDs on the keypad and LED Status Ring will turn on.
Note:
When Safety input 2 CH is open (STo), READY will flash.
No signal output available
U4-10
(005C)
kWh, Lower 4 Digits
Shows the lower 4 digits of the watt hour value for the drive.
Unit: 1 kWh
Note:
The watt hour is displayed in 9 digits. Monitor U4-11 [kWh, Upper 5 Digits] shows the upper 5
digits and U4-10 shows the lower 4 digits.
Example for 12345678.9 kWh:
U4-10: 678.9 kWh
U4-11: 12345 MWh
No signal output available
U4-11
(005D)
kWh, Upper 5 Digits
Shows the upper 5 digits of the watt hour value for the drive.
Unit: 1 MWh
Note:
Monitor U4-11 shows the upper 5 digits and U4-10 [kWh, Lower 4 Digits] shows the lower 4
digits.
Example for 12345678.9 kWh:
U4-10: 678.9 kWh
U4-11: 12345 MWh
No signal output available
U4-13
(07CF)
Peak Hold Current
Shows the hold value of the peak value (rms) for the drive output current.
Use U4-14 [PeakHold Output Freq] to show the drive output frequency at the time that the drive
holds the output current.
The drive will hold the peak hold current at the next start up and restart of the power supply. The
drive keeps the value that was under hold during baseblock (during stop).
The keypad shows the value of U4-13 in amperes (A). When you use MEMOBUS/Modbus
communications to show the monitor, the current is “8192 = drive rated current (A)”. Use the
formula: “Numerals being displayed / 8192 × drive rated current (A)” to use the MEMOBUS/Modbus
communication current value shown in the monitor.
Unit: When the drive model changes, the display units for this parameter also change.
• 0.01 A: 2004 - 2042, 4002 - 4023
• 0.1 A: 2056 - 2415, 4031 - 4720, T103 - T720
No signal output available
U4-14
(07D0)
PeakHold Output Freq
Shows the output frequency at which the peak value (rms) of the drive output current is held.
The peak hold current can be monitored by U4-13 [Peak Hold Current].
The peak hold output frequency will be cleared at the next startup and restart of the power supply.
The drive keeps the value that was under hold during baseblock (during stop).
Unit: 0.01 Hz
No signal output available
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