Yaskawa CIMR-V7AM-091 - Manual (Page 5)

Date: 02/20/05, Rev: 05-02 Page 5 of 15 TM.V7SW.091
2.4 KEB Function Related Parameters
No.
Modbus
Register
Name Description
Setting
Range
Initial
Value
Remarks
n050 to
n056
0132H to
0138H
Multi-function
Digital Input
Selection 1 - 7
Programming the KEB command (settings NO
contact: 28 or NC contact: 29) to a multi-function
digital input enables the KEB function, resulting in
re-acceleration at recovery from the power loss. If a
KEB command is not programmed, operation follows
the setting of parameter n081.
- -
KEB command cannot
be set to more than two
terminals and settings
28 and 29 cannot be
set at the same time.
n057 to
n059
0139H to
013BH
Multi-function
Digital Output
Selection 1 - 3
22: During KEB Operation
KEB signal is output during KEB deceleration or
re-acceleration. This function is not active if the
KEB function is not programmed.
23: High-Speed Operation
This output closes during speed agree the
high-speed (main) frequency selection (when none
of the multi-function digital input functions Multi-step
Speed 1-4 or Jog are closed.).
The output cycles close/open every 0.5 seconds
during speed agree (except for the main speed
reference). The output cycles close/open every 1
second during acceleration or deceleration
regardless of the frequency reference. The output
opens while stopping. This function is active even if
the KEB function is not programmed.
15: Undervoltage Detection
In addition to the standard software conditions of
Undervoltage, the output will also close during
deceleration due to the KEB function.
30: Disturb waveform disable
Signal disables the disturb waveform.
Note: Function available in large HP version only
(VSP01529X).
31: Simple synchronized Accel/Decel
When the signal is input, the Accel/Decel times are
modified as follows:
Time = Accel/Decel time x (Fmax / Fref)
Note: Function available in large HP version only
(VSP01529X).
- -
All multi-function digital
outputs have a
100msec minimum
state length.
n081 0151H
Selection of
Operation after
Momentary Power
Loss
0: Operation not continued.
1: Ride Through. Operation continued at recovery
from power loss within 0.5 second
2: CPU Ride Through. Operation continued at
recovery from power loss (no fault output).
3: KEB Operation.
0 to 3 3
n045 012DH
KEB Deceleration
Time 1
0.00 to
6000 sec
10.0sec
n046 012EH
KEB Deceleration
Time 2
0.00 to
6000sec
10.0sec
n047 012FH
KEB Deceleration
Ratio Changeover
Time
When KEB operation starts, the motor decelerates
in KEB Deceleration Time 1. After KEB
Deceleration Ratio Changeover Time, the motor
decelerates in KEB Deceleration Time 2.
The setting unit of KEB Deceleration Times 1 and 2
depends on the setting of parameter n018:
Accel/Decel Time Setting Unit.
0.00 to
2.55sec
0.10sec
Parameters can be set
during running.
n048 0130H
KEB Starting
Voltage
The drive starts KEB operation when main circuit
DC bus voltage becomes less than the KEB
detection voltage value or when the multi-function
digital input function “KEB Command” is closed.
Note: Parameter n081: Momentary Power Loss
must be set to 3.
135 to
300Vdc
225Vdc
The setting range and
the initial value are
doubled for 460V units.
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