Yaskawa J1000 Compact V/f Control Drive - Manual (Page 110)

• Disable motor protection (L1-01 = 1) when running multiple motors from the same drive.
Attach a thermal relay for each motor to provide overload protection.
• Use L1-13 (Continuous Electrothermal Operation Selection) to select whether the
electrothermal value is “held” or “not held” when power supply is turned off. Default setting
is 1 (Enabled).
• In the case of a general purpose (standard) motor, the cooling capability is reduced at a low
speed. Motor overload protection (oL1) may occur in frequencies lower than motor rated
current. Use an exclusive-use or inverter-duty motor to operate the drive at rated current at
low frequency.
u Drive Status Monitors: U1-01 to U4-13
Parameter group U displays various data regarding the operating status of the drive.
The following example demonstrates viewing output voltage reference (U1-06).
Step Display/Result
1. Turn on the power to the drive. The initial display appears.
2.
Press until “Monitor Display” appears.
3.
Press to enter the Parameter Setting Screen.
4.
Press until U1-06 appears.
5. Press to display the voltage reference. The Output Voltage
Reference appears.
Refer to Parameter List on page 213 for more details about Drive Status Monitors.
Table 4.13 Drive Status Monitors
No. Parameter Name Page
U1-01 Frequency Reference 235
U1-02 Output Frequency 235
U1-03 Output Current 235
U1-06 Output Voltage Reference 235
U1-07 DC Bus Voltage 235
U1-10 Input Terminal Status 236
U1-11 Output Terminal Status 236
U1-13 Terminal A1 Input Voltage 236
No. Parameter Name Page
U1-19 MEMOBUS/Modbus Error Code 236
U1-25 Software Number (ROM) 236
U1-26 Software Number (Flash) 236
U2-01 Current Fault 236
U2-02 Previous Fault 236
U4-01 Accumulated Operation Time 237
U4-04 Cooling Fan Maintenance 237
U4-05 Capacitor Maintenance 237
4.5 Basic Operation
110 YASKAWA ELECTRIC TOEP C710606 26D YASKAWA AC Drive – J1000 Quick Start Guide