Powering Up The Drive And Operation Status Display - YASKAWA L1000A Technical Manual

◆ Powering Up the Drive and Operation Status Display

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Powering Up the Drive
Perform the following power-off checks before applying main power to the drive.
WARNING! Electrical Shock Hazard. Do not contact live electrical parts. Failure to comply could result in death or serious injury. Never
touch the output terminals directly with your hands or allow the output lines to come into contact with the drive case.
WARNING! Sudden Movement Hazard. Operating a drive with untested emergency circuits could result in death or serious injury.
Always check the operation of any fast stop circuits after they are wired. Fast stop circuits are required to provide safe and quick
shutdown of the drive.
WARNING! Sudden Movement Hazard. Ensure start/stop and safety circuits are wired properly and in the correct state before
energizing the drive. Failure to comply could result in death or serious injury from moving equipment.
Power-off Checks
Power supply voltage
Drive output terminals and motor ter-
minals
Control circuit terminals
Drive control terminal status
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Status Display
When the power supply to the drive is turned on, the digital operator lights will appear as follows:
No.
DIGITAL OPERATOR JVOP-180
- MODE -
Normal Operation
U1-01= 0.00%
U1-02= 0.00%
U1-03= 0.00A
DIGITAL OPERATOR JVOP-180
- MODE -
Fault
External fault (example)
◆ ALARM (ALM) LED Displays
State
Illuminated When the drive detects an alarm or error.
• When an alarm occurs.
Flashing • When oPE is detected.
• When a fault or error occurs during Auto-Tuning.
Off Normal operation (no fault or alarm).
YASKAWA ELECTRIC SIEP C710616 38A YASKAWA AC Drive L1000A Technical Manual
Ensure the power supply voltage is correct on the supply side of the disconnect, before applying power to the drive.
200 V class: 3-phase 200 to 240 Vac 50/60 Hz
400 V class: 3-phase 380 to 480 Vac 50/60 Hz
Properly wire the power supply input terminals (R/L1, S/L2, T/L3). Check for correct wiring, terminals are tightened, and there are no loose wire
strands.
Check for proper grounding of drive and motor.
Properly wire drive output terminals U/T1, V/T2, and W/T3 with motor terminals U/T1, V/T2, and W/T3. Check for correct wiring, terminals
are tightened, and there are no loose wire strands.
Check control circuit terminal connections. Check that control circuit terminals are correctly wired, terminals are tightened, and there are no
loose wire strands.
Open all control circuits to the drive I/O terminal block.
Name
ALM
YEA_
DRV Rdy
The data display area in the upper half of the display, displays the speed reference. DRV is displayed.
Speed Ref (OPR)
common
RSEQ
LREF
FWD
ALM
YEA_
DRV
Data displayed varies by the type of fault. Refer to
common
EF3
for more information and possible solutions. ALM LED is lit and DRV displayed.
Ext Fault S3
RESET
FWD
Table 4.2 ALARM (ALM) LED Status and Contents
Content
4.2 Using the Digital Operator
Description
Description
Fault Displays, Causes, and Possible Solutions on page 257
4
Display
87