Yaskawa AC Drive P1000 Bypass Technical Manual - Manual (Page 74)

Step Display/Result
Motor Rotation in Bypass Mode
11. Press
F2 to toggle to the Bypass Mode.
The keypad display should show BYP–OFF if the device is ready for Bypass operation.
BYP-OFF
U1-01= 0 0.0Hz
Frequency Ref
U1-02= 0.00Hz
U1-03= 0.0A LSEQ
LREF
RLY DRV/BYP
12. Bump the motor by pressing HAND then quickly pressing
OFF
. Ensure the motor is
rotating in the correct direction and that no faults or alarms occur.
Motor
Forward
13.
If the direction of motor rotation is incorrect, press OFF to stop the motor. The HAND
light turns OFF and the motor coasts to stop.
Skip to step 15 if the direction of motor rotation is correct.
F2 F1
ESC M M
AUTO OFF
ENTER RESET
ALM DIGITAL OPERATOR JVOP-183
HAND
On Off
HAND HAND
DRV-OFF
U1-01= 0.00Hz
U1-02= 0.00Hz
U1-03= 0.00 A
Freq Ref (AUTO)
BYPASS
LSEQ
LREF
14.
Turn off the power to the P1000 Bypass.
WARNING! Electrical Shock Hazard. Do not touch any terminals before the
capacitors have fully discharged. Failure to comply could result in death or serious
injury. Before servicing, disconnect all power to the equipment. The internal
capacitor remains charged even after the power supply is turned off. The charge
indicator LED will extinguish when the DC bus voltage is below 50 Vdc. To prevent
electric shock, wait for at least the time specified on the warning label, once all
indicators are OFF, measure for unsafe voltages to confirm the drive is safe prior
to servicing.
Switch the wires for L1 and L2 on the bypass input circuit breaker. Re-tighten the terminal
lugs and reapply power.
– –
15.
Run the motor in Bypass Mode using HAND and check the motor current using UB-01.
Then measure the output voltage (Line-to-Line and Line-to-Ground) using a multimeter
and record the values for future reference.
BYP-RUN BYPASS
UB-01= 0 2.5A
Monitor Menu
UB-02=10000110
UB-03=10000110 LSEQ
LREF
RLY DRV/BYP
16. The P1000 Bypass should operate normally. Press
OFF
to stop the motor. The HAND
light is OFF and the motor coasts to stop.
– –
4.5 Start-Up Procedure
74 YASKAWA SIEP YAIP1B 01A YASKAWA AC Drive – P1000 Bypass Technical Manual