Yaskawa Z1000U - Manual (Page 128)

• The RESET key is pushed after the last reset attempt.
The setting of parameter L5-02 determines whether the fault output (MA-MB) will be closed during an auto restart attempt.
The setting of L5-02 can be important when using the drive with other equipment.
The following faults will allow the Auto Restart function to initiate:
• oC (Overcurrent)
• LF (Output Phase Loss)
• PF (Input Phase Loss)
• oL1 (Motor Overload)
• oL3 (Overtorque Detection 1)
• oL2 (Drive Overload)
• ov (Overvoltage)
• GF (Ground Fault)
• Uv1 (Undervoltage)
• oH1 (Heatsink Overheat)
In order for auto restart after a Uv1 fault, Momentary Power Loss Ride-thru must be enabled (L2-01= 1: “Power Loss Ridethru
Time”). Setting H2-01, H2-02 or H2-03 to 1E configures a digital output as “Restart Enabled” to signal if an impending auto
restart is possible.
n L6-01: Torque Detection Selection 1
The torque detection function is triggered when the current or torque exceed the levels set to L6-02 for longer than the time
set to L6-03. L6-01 selects the conditions for detection and the operation that follows.
No. Name Setting Range Default
L6-01 Torque Detection Selection 1 0 to 12 0
Setting 0: Disabled
Setting 1: oL3 at Speed Agree (Alarm)
Overtorque detection is active only when the output speed is equal to the frequency reference (i.e., no detection during
acceleration and deceleration). The operation continues after detecting overtorque and triggering an oL3 alarm.
Setting 2: oL3 at Run (Alarm)
Overtorque detection works as long as the Run command is active. The operation continues after detecting overtorque and
triggering an oL3 alarm.
Setting 3: oL3 at Speed Agree (Fault)
Overtorque detection is active only when the output speed is equal to the frequency reference (i.e., no detection during
acceleration and deceleration). The operation stops and triggers an oL3 fault.
Setting 4: oL3 at Run (Fault)
Overtorque detection works as long as a Run command is active. The operation stops and triggers an oL3 fault.
Setting 5: UL3 at Speed Agree (Alarm)
Undertorque detection is active only when the output speed is equal to the frequency reference (i.e., no detection during
acceleration and deceleration). The operation continues after detecting overtorque and triggering a UL3 alarm.
Setting 6: UL3 at Run (Alarm)
Undertorque detection works as long as the Run command is active. The operation continues after detecting overtorque and
triggering a UL3 alarm.
Setting 7: UL3 at Speed Agree (Fault)
Undertorque detection is active only when the output speed is equal to the frequency reference (i.e., no detection during
acceleration and deceleration). The operation stops and triggers a UL3 fault.
Setting 8: UL3 at Run (Fault)
Undertorque detection works as long as a Run command is active. The operation stops and triggers a UL3 fault.
4.7 Basic Drive Setup Adjustments
128 YASKAWA ELECTRIC TOEP C710636 10B Z1000U HVAC MATRIX Drive User Manual