Specifications
YASKAWA Inverter Drive A1000 – Crane Software Application Manual 
29 
Access Level <1> 
  No.  Parameter Name 
Min. 
Units 
Description  Analog Output Level 
V/f 
V/f 
with PG 
OLV  CLV 
MEMOBUS 
Address 
U4-01  Cumulative Operation Time  1 h 
Displays the cumulative operation time of the drive. The 
way this monitor is incremented depends on parameter 
o4-01 setting 
- M M M M 4CH 
U4-02  Number of Run Commands  1 time 
Display the number of RUN commands that have been 
entered. Can be reset with parameter o4-13 
- M M M M 75H 
U4-03  Cooling Fan Operation Time  1 h 
Displays the cumulative operation time for the cooling 
fans. Can be reset with parameter o4-03, for example 
when replacing fans 
- M M M M 67H 
U4-04  Cooling Fan Maintenance  1% 
Displays main cooling fan usage time as a percentage of 
expected lifetime. Can be reset with parameter o4-03 
- M M M M 7EH 
U4-05 Capacitor Maintenance  1% 
Displays main circuit capacitor usage time as a percentage 
of expected lifetime. Can be reset with parameter o4-05 
- M M M M 7CH 
U4-06 
Soft Charge Bypass Relay 
Maintenance 
1% 
Displays soft charge relay usage time as a percentage of 
expeceted lifetime. Can be reset with parameter o4-07 
- M M M M 7D6H 
U4-07 IGBT Maintenance  1% 
Displays IGBT usage time as a percentage of expected 
lifetime. Can be reset with parameter o4-09 
- M M M M 7D7H 
U4-08  Heatsink Temperature    1 °C  Displays the actual heatsink temperature  10 V: 100 °C  M  M  M  M  68H 
U4-09  LED Check    -  Ligts all LEDs to verify that the display is working correctly  -  M  M  M  M  5EH 
U4-10  kWh, Lower 4 Digits  1 kWh  -  M  M  M  M  5CH 
U4-11  kWh, Upper 5 Digits  1 MWh 
Displays drive output power as a 9 digit number spread 
across two monitos. For example 12345678,9 kWh is 
shown as: 
U4-10: 678,9 kWh 
U4-11: 123345 MWh 
- M M M M 5DH 
U4-13  Peak Hold Current    0.01 A  Displays the highest current value reached during run  -  M  M  M  M  7CFH 
U4-14  Peak Hold Output Frequency    0.01 Hz  Displays the output frequency at which U4-13 ocurred  -  M  M  M  M  7D0H 
U4-15  Torque Reference Monitor    0.1%  Displays the mean torque reference during drive operation
10 V: Motor Rated 
Torque 
-  -  M  -  7FEH 
U4-16  Motor Overload Estimate (oL1)  1% 
Displays the value of the motor overload detection 
acumulator. 100% is equal to the oL1 detection level 
10 V: 100%  M  M  M  M  7D8H 
U4-18  Frequency Reference Source    -  Displays the source of the frequency reference  -  M  M  M  M  7DAH 
U4-19 
Frequency Reference from 
MEMOBUS 
0.01% 
Displays the frequency reference value from 
MEMOBUS/Modbus 
- M M M M 7DBH 
U4-20  Option Frequency Reference  -  Displays the frequency reference value from option card  -  M  M  M  M  7DCH 
U4-21  Run Command Source Selection  -  Displays the source of the RUN command  -  M  M  M  M  7DDH 
U4-22  MEMOBUS Comm. Reference  - 
Displays drive control data set by MEMOBUS/Modbus to 
register 0001H as a four digit hex number 
- M M M M 7D2H 
Maintenance 
U4-23  Comm. Option Card Reference  - 
Displays drive control data set by option card as a four 
digit hex number 
 M M M M 7D3H 
U6-01  Motor Secondary Current (Iq)  0.1%  Displays the value of the motor secondary current (Iq) 
10 V:Motor rated 
secondary current 
M M  M  M 51H 
U6-02  Motor Excitation Current (Id)  0.1%  Displays the value of the motor excitation current (Id) 
10 V: Motor rated 
secondary current 
- -  M M 52H 
U6-03 ASR Input   0.01% 
10 V: Max 
frequency 
- M  -  M 54H 
U6-04 ASR Output   0.01% 
Displays input and output values when using ASR control 
10 V: Max 
frequency 
- M  -  M 55H 
U6-05  Output Voltage Reference (Vq)  0.1 V  Displays the ouput voltage reference for the q axis (Vq) 
10 V: 200 Vrms 
<7> 
- -  M M 59H 
U6-06  Output Voltage Reference (Vd)  0.1 V  Displays the ouput voltage reference for the d axis (Vd) 
10 V: 200 Vrms 
<7> 
- -  M M 5AH 
U6-07  q Axis ACR Output    0.1%  Displays output value for the current control loop (q axis) 
10 V: 200 Vrms 
<7> 
- -  M M 5FH 
U6-08  d Axis ACR Output    0.1%  Displays output value for the current control loop (d axis) 
10 V: 200 Vrms 
<7> 
- -  M M 60H 
U6-18  Speed Detection PG1 Counter  1 ppr  Monitors the number of pulses for speed detection (PG1)  10 V: 65536  M  M  M  M  7CDH 
U6-19  Speed Detection PG2 Counter  1 ppr  Monitors the number of pulses for speed detection (PG2)  10 V: 65536  M  M  M  M  7E5H 
U6-20  Frequency Reference Bias Value    0.1% 
Displays the bias value used to adjust the frequency 
reference 
10 V: Max 
frequency 
M M  M  M 7D4H 
U6-21  Offset Frequency  0.1%  Displays the value added to the main frequency reference  -  M  M  M  M  7D5H 
U6-22  Zero Servo Pulse Movement    1 ppr  Displays how far the rotor has moved from its last position  10 V: Max ppr  -  -  -  M  62H 
U6-23  Feedback Control Output    0.01%  Output monitor for the ASR speed loop 
10 V: Motor rated 
secondary current 
- -  -  M 6BH 
Control Monitors 
U6-24  Feed Forward Control Output  0.01%  Output monitor for feed forward control 
10 V: Motor rated 
secondary current 
- -  -  M 6CH 
<1>  Access Levels  A: Advanced Programming Menu  Q: Quick Setting Menu  -: N/A in this Control Mode 
<7>  Values shown are for 200 VAC class drives. For 400 VAC class drives these values are doubled. 










