• 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 209 for more details about Drive Status Monitors.
Table 4.13 Drive Status Monitors
No. Parameter Name Page
U1-01 Frequency Reference 231
U1-02 Output Frequency 231
U1-03 Output Current 231
U1-06 Output Voltage Reference 231
U1-07 DC Bus Voltage 231
U1-10 Input Terminal Status 232
U1-11 Output Terminal Status 232
U1-13 Terminal A1 Input Voltage 232
No. Parameter Name Page
U1-19 MEMOBUS/Modbus Error Code 232
U1-25 Software Number (ROM) 232
U1-26 Software Number (Flash) 232
U2-01 Current Fault 232
U2-02 Previous Fault 232
U4-01 Accumulated Operation Time 233
U4-04 Cooling Fan Maintenance 233
U4-05 Capacitor Maintenance 233
4.5 Basic Operation
110
YASKAWA ELECTRIC TOEP C710606 26B YASKAWA AC Drive – J1000 Quick Start Guide