<39> If this parameter is set to 0, the drive will be unable to respond to MEMOBUS/Modbus commands.
<40> The availability of certain functions depends on the control method used.
Note:
Cycle power to the drive to enable MEMOBUS/Modbus settings.
u
L: Protection Function
L parameters provide protection to the drive and motor, such as: control during momentary power loss, Stall Prevention,
frequency detection, fault restarts, overtorque detection, torque limits and other types of hardware protection.
No.
Name
Description
Range
Def.
Control
Mode
Addr.
Hex
Pg.
V/f O
LV
P
M
L1: Motor Protection Functions
Use L1 parameters to configure motor protective functions.
L1-01
Motor Overload Protection
Selection
Sets the motor thermal overload protection (oL1) based on
the cooling capacity of the motor.
0: Disabled
1: Standard Fan Cooled (speed range < 10:1)
2: Standard Blower Cooled (speed range ≥ 10:1)
3: Vector Motor (speed range 100:1)
4: PM motor with variable torque
NOTICE:
When multiple motors are used the drive may not
be able to provide protection, even if it is enabled in L1-01.
Set L1-01 to “0” and ensure each motor has a thermal relay
installed.
0 to 4
1
<2>
S S S
480
185
L1-02
Motor Overload Protection
Time
Sets the motor thermal overload protection (oL1) time.
A larger L1-02 time will increase the time for an oL1 fault to
occur.
This parameter does not typically require adjustment. Should
be set in accordance with the overload tolerance of the motor.
0.1 to 5.0
1.0
min
A A A
481
186
L1-03
Motor Overheat Alarm
Operation Selection (PTC
input)
Sets operation when the motor temperature analog input
(H3-02/10 = E) exceeds the oH3 alarm level.
0: Ramp to Stop
1: Coast to Stop
2: Fast-stop using C1-09
3: Alarm Only (“oH3” will flash)
0 to 3
3
A A A
482
188
L1-04
Motor Overheat Fault
Operation Selection (PTC
input)
Sets stopping method when the motor temperature analog
input (H3-02/10 = E) exceeds the oH4 fault level.
0: Ramp to Stop
1: Coast to Stop
2: Fast-stop
0 to 2
1
A A A
483
188
L1-05
Motor Temperature Input
Filter Time (PTC input)
This parameter adjusts the filter on the motor temperature
analog input (H3-02 or H3-10 = E). Increase to add stability,
decrease to improve response.
0.00 to
10.00
0.20 s A A A
484
188
L1-13
Continuous Electrothermal
Operation Selection
Determines whether or not to hold the electrothermal value
when the power supply is interrupted.
0: Disabled
1: Enabled
0 to 1
1
A A A
46D
188
L2: Momentary Power Loss
Use L2 parameters to configure drive functions for momentary power loss conditions.
L2-01
Momentary Power Loss
Operation Selection
Enables and disables the momentary power loss function.
0: Disabled - Drive trips on (Uv1) fault when power is lost.
1: Power Loss Ride-Thru Time - Drive will restart if power
returns within the time set in L2-02.
2: CPU Power Active - Drive will restart if power returns as
long as the CPU is working.
0 to 2
0
A A A
485
188
For a restart to occur, the run command
must be maintained throughout the
Ride-Thru period.
L2-02
Momentary Power Loss
Ride-Thru Time
Sets the Power Loss Ride-Thru time. Only effective when
L2-01 = 1.
0.0 to 25.5
<12>
A A A
486
189
L2-03
Momentary Power Loss
Minimum Baseblock Time
Sets the minimum wait time for residual motor voltage decay
before the drive output reenergizes after power loss Ride-
Thru. If L2-03 is greater than L2-02, operation resumes after
the time set in L2-03.
0.1 to 5.0
<57>
A A A
487
189
L2-04
Momentary Power Loss
Voltage Recovery Ramp
Time
Sets the time for the output voltage to return to the preset V/
f pattern during Speed Search.
0.0 to 5.0
<12>
A A A
488
189
L2-05
<24>
Undervoltage Detection
Level (Uv)
Sets the DC Bus undervoltage trip level. If this is set lower
than the default setting, additional AC input impedance or
DC bus reactance may be necessary.
This value is used for KEB activation if L2-01 > 0.
150 to 210
<9>
<12>
A A A
489
189
L2-06
KEB Deceleration Time
Sets the time required to decelerate from the speed when KEB
was activated to zero speed.
0.0 to
200.0
0.0 s A A A
48A
191
L2-07
KEB Acceleration Time
Set the time to accelerate to the set speed after recovery from
a momentary power loss. If set to 0.0, the active acceleration
time is used.
0.0 to 25.5 0.0 s A A A
48B
191
B.2 Parameter Table
SIEP C710606 20 OYMC AC Drive - V1000 User Manual
321
B
Parameter List
7/16/2008-13:23