YASKAWA V1000 Series Technical Manual page 314

B.2 Parameter Table
No. Name
L7-01 Forward Torque Limit
L7-02 Reverse Torque Limit
L7-03 Forward Regenerative Torque Limit
L7-04 Reverse Regenerative Torque Limit
L7-06 Torque Limit Integral Time Constant Sets the integral time constant for the torque limit.
Torque Limit Control Method
L7-07
Selection during Accel/Decel
Internal Dynamic Braking Resistor
L8-01
Protection Selection (ERF type)
L8-02 Overheat Alarm Level
Overheat Pre-Alarm Operation
L8-03
Selection
L8-05 Input Phase Loss Protection Selection
L8-07 Output Phase Loss Protection
Output Ground Fault Detection
L8-09
Selection
Heatsink Cooling Fan Operation
L8-10
Selection
Heatsink Cooling Fan Operation Delay
L8-11
Time
L8-12 Ambient Temperature Setting
OL2 Characteristics Selection at Low
L8-15
Speeds
L8-18 Soft CLA Selection
Frequency Reduction Rate during OH
L8-19
Pre-Alarm
L8-29 Current Unbalance Detection (LF2)
L8-35 Installation Method
L8-38 Carrier Frequency Reduction
L8-40 Carrier Frequency Reduction Time
314
Description
L7: Torque Limit
Use L7 parameters to configure the torque limit function.
Sets the torque limit value as a percentage of the motor rated torque. Four
individual quadrants can be set.
output torque
L7-04
regeneration
REV
L7-02
Selects the method of torque limit control during accel/decel.
0: Proportional Control (change to integral controls at fixed speeds). Use this
setting when acceleration to the desired speed has priority over torque limitation.
1: Integral Control. Use this setting if the torque limitation has priority.
When torque limit is applied to the motor, accel/decel time may increase and
motor speed may not meet the speed reference.
L8: Hardware Protection
Use L8 parameters to configure hardware protection functions.
Selects the Braking resistor when using a 3% duty cycle heatsink mounted
Yaskawa braking resistor. This parameter does not enable or disable the braking
transistor of the drive.
0: Resistor overheat protection disabled
1: Resistor overheat protection enabled
When the heatsink temperature exceeds the value set in this parameter, an
Overheat Alarm (OH) will occur.
Sets the drive operation when an overheat alarm OH is detected.
0: Ramp to Stop using the active decel time.
1: Coast to Stop.
2: Fast-stop using the time set in C1-09.
3: Alarm Only. Drive continues running, but displays an alarm.
4: Reduced Speed Operation. Drive continues to run with reduced frequency
reference as specified in L8-19.
Settings 0 through 2 trigger a fault relay if the heatsink becomes too hot.
Selects the detection of input current phase loss, power supply voltage imbalance,
or main circuit electrolytic capacitor deterioration.
0: Disabled
1: Enabled
Selects the output phase loss detection.
0: Disabled
1: Enabled (triggered by a single phase loss).
2: Enabled (triggered when two phases are lost).
Output phase loss is detected when operating with less than 5% of the drive rated
current. Detection can mistakenly occur if the motor is too small relative to the
drive capacity rating (this parameter should be disabled in such cases).
Selects the output ground fault detection.
0: Disabled
1: Enabled
Controls the heatsink cooling fan operation.
0: Fan On-Run Mode - Fan will operate only when the drive is running and for
L8-11 seconds after stop.
1: Fan always on - Cooling fan operates whenever the drive is powered up.
This parameter sets the delay time for the cooling fan to shut off after the run
command is removed when L8-10 = 0.
Used to input the ambient temperature. This value adjusts the drives OL2
detection level.
Sets the OL2 characteristics at output frequencies below 6 Hz.
0: No OL2 level reduction below 6Hz.
1: OL2 level is reduced linearly below 6 Hz. It is halved at 0 Hz.
Selects the software current limit function. Typically no adjustment is required.
0: Disabled
1: Enabled
Specifies the frequency reference reduction gain at overheat prealarm when
L8-03 = 4.
Selects the detection of unbalanced output currents caused by faulty devices in
the output circuit.
0: Disabled
1: Enabled
Selects the installation type:
0: Standard installation of Open Chassis drive
1: Side-by-Side installation with top cover removed
2: Standard Installation of NEMA Type 1 drive
3: Finless / Fin outside installation
Provides protection to the IGBTs by reducing the carrier frequency at low speeds.
0: Disabled
1: Enabled below 6 Hz
2: Enabled for the whole speed range
Sets the time for that the drive continues running with reduced carrier frequency
after the carrier reduction condition has gone (see also L8-38).
A setting of 0.00 s disables the carrier frequency reduction time.
positive torque
L7-01
motor
r/min
FWD
regeneration
L7-03
negative torque
YASKAWA ELECTRIC SIEP C710606 18A YASKAWA AC Drive – V1000 Technical Manual (Preliminary)
Control
Mode
Range Def.
V/f OL V PM
0 to 300 200% − A −
0 to 300 200% − A −
0 to 300 200% − A −
0 to 300 200% − A −
5 to 10000 200 ms − A −
0, 1 0 − A −
0, 1 0 A A A
50 to 130 A A A
<12>
0 to 4 3 A A A
0, 1 1 A A A
<56>
0 to 2 0 A A A
0, 1 A A A
<12>
0, 1 0 A A A
0 to 300 60 s A A A
-10 to 50 40 °C A A A
0, 1 1 A A A
0, 1 1 A A −
0.1 to 1.0 0.8 A A A
0 to 1 1 − − A
<12>
0 to 2 Α Α A
<25>
0 to 2 0 A A A
0.00 to 2.00 0.50 A A A
Addr.
Pg.
Hex
4A7 —
4A8 —
4A9 —
4AA —
4AC —
4C9 —
4AD —
4AE —
4AF —
4B1 —
4B3 —
4B5 —
4B6 —
4B7 —
4B8 —
4BB —
4BE —
4BF —
4DF —
4ECH —
4EF —
4F1