YASKAWA H6B1A002, Technical Reference

Page: 633 / 794

Parameter
List
9
9.11 L: Protection Functions
YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference 633
9.11 L: Protection Functions
◆
L1: Motor Protection
No.
(Hex.)
Name Description
Default
(Range)
Ref.
L1-01
(0480)
Motor Overload (oL1)
Protection Sets the motor overload protection with electronic thermal protectors.
0 : Disabled
1 : Variable Torque
Note:
When you connect only one motor to a drive, set L1-01 = 1 [Variable Torque] .
External thermal relays are not necessary in these conditions.
1
(0, 1)
317
L1-02
(0481)
Motor Overload
Protection Time Sets the operation time for the electronic thermal protector of the drive to prevent damage
to the motor. Usually it is not necessary to change this setting. 1.0 min
(0.1 - 5.0 min)
318
L1-03
(0482)
Motor Thermistor oH
Alarm Select Sets drive operation when the PTC input signal entered into the drive is at the oH3 [Motor
Overheat Alarm]
detection level.
0 : Ramp to Stop
1 : Coast to Stop
2 : Fast Stop (Use C1-09)
3 : Alarm Only
3
(0 - 3)
319
L1-04
(0483)
Motor Thermistor oH
Fault Select Sets the drive operation when the PTC input signal to the drive is at the oH4 [Motor
Overheat Fault (PTC Input)] detection level.
0 : Ramp to Stop
1 : Coast to Stop
2 : Fast Stop (Use C1-09)
1
(0 - 2)
319
L1-05
(0484)
Motor Thermistor Filter
Time Sets the primary delay time constant for the PTC input signal entered to the drive. This
parameter prevents accidental motor overheat faults. 0.20 s
(0.00 - 10.00 s)
320
L1-08
(1103)
oL1 Current Level Sets the reference current for the motor 1 thermal overload detection. When the current
level > 0.0 A, you cannot set this value < 10% of drive rated current. 0.0 A
(0.0 A or 10% to 150% of
the drive rated current)
320
L1-13
(046D)
Motor Overload Memory
Selection Sets the function that keeps the current electronic thermal protector value after power loss.
0 : Disabled
1 : Enabled
2 : Enabled, using RTC
2
(0 - 2)
320
◆
L2: Power Loss Ride Through
No.
(Hex.)
Name Description
Default
(Range)
Ref.
L2-01
(0485)
Power Loss Ride Through
Select Sets the drive operation after a momentary power loss.
0 : Disabled
1 : Enabled for L2-02 Time
2 : Enabled while CPU Power Active
2
(0 - 2)
320
L2-02
(0486)
Power Loss Ride Through
Time Sets the maximum time that the drive will wait until it tries to restart after power loss. Determined by o2-04
(0.0 - 25.5 s)
321
L2-03
(0487)
Minimum Baseblock
Time Sets the minimum time to continue the drive output block (baseblock) after a baseblock. Determined by o2-04
(0.1 - 5.0 s)
321
L2-04
(0488)
Powerloss V/f Recovery
Ramp Time Sets the time for the drive output voltage to go back to the correct voltage after it
completes speed searches. Determined by o2-04
(0.0 - 5.0 s)
321
L2-05
(0489)
Undervoltage Detection
Lvl (Uv1) Sets the voltage at which the drive triggers a Uv1 [DC Bus Undervoltage] fault. Usually it
is not necessary to change this setting.
Determined by o2-04 and
E1-01
(208/240 V: 150 - 220 V,
480 V: 300 - 440 V)
322