Load Operation - YASKAWA CIMR-MC5A20P4 Instruction Manual

Trial Operation
5.2.6 No-load Operation
Display Message
PG Direction
Motor speed
ALARM: Over Load
(Displayed after completion of
autotuning)
Tune Aborted
Minor Fault:
Tune Aborted
V/f Over Setting
(Displayed after completion of
autotuning)
5.2.6 No-load Operation
5
Fault
Motor direction fault
Motor speed fault
Tuning overload fault
Minor fault
V/f Over Setting
Fault displays can be cleared by pressing the MENU Key.
D
All set constants (motor constants) will be initialized if a fault occurs. Reset the constants from the
D
beginning when before starting autotuning again.
The section describes trial operation in which the motor is operated from the Digital Operator with the mo-
tor in the no-load state (with the motor not connected to the mechanical system).
J Setting the Frequency Reference
Set the frequency reference on the frequency reference monitor in the operation mode.
The following is an operation example with the frequency reference set to 10 Hz.
Step Key Sequence
1
DATA
ENTER
2
LOCAL
REMOTE
3
DATA
ENTER
4
RESET
5
6
DATA
ENTER
Description
There is a contact fault between
the Inverter, PG (phase A and B),
and motor (phases U, V, and W)
The torque reference was too large
(100%) during autotuning.
The torque reference was over
20% during autotuning.
A minor Inverter fault occurred.
Torque reference exceeded 100%,
and no- -load current exceeded
70%.
Digital Operator Display
MC5 Main Menu
Operation
Frequency Ref
U1-01 = 0.00 HZ
Frequency Ref
U1-01 = 0.00 HZ
Frequency Ref
000.00 HZ
Frequency Ref
000. 00HZ
Frequency Ref
010. 00HZ
Entry Accepted
Frequency Ref
010. 00 HZ
- 8
Countermeasure
S Check the PG wiring.
S Check the motor wiring.
S Check the PG direction and constant F1-05.
S Disconnect the motor from the machine if
it has been connected.
S Increase the acceleration time (C1-01).
S Check the input data (particularly the num-
ber of PG pulses).
Check the input data (particularly the num-
ber of PG pulses) if the motor is being auto-
tuned separately.
Check the minor fault indicated in the boxes
in the display shown at the left.
S Check the setting.
S Disconnect the motor from the load.
Remarks
Displays operation mode.
Puts the Unit in operation mode and
displays the frequency reference.
Switches operation to the Digital Op-
erator. (SEQ, REF and LED indica-
tors turn OFF.)
Sets the frequency reference.
The tens digit blinks.
Set to 010.00 Hz.
The set values are overwritten.
Returns to the frequency reference
display.