Yaskawa AC Drive-P1000 Industrial Fan - Manual (Page 447)

No.
(Addr.
Hex)
Name Description Values Page
L8-19
(4BF)
Frequency Reduction Rate
during Overheat Pre-Alarm
Specifies the frequency reference reduction gain at overheat pre-alarm when
L8-03 = 4.
Default: 0.8
Min.: 0.1
Max.: 0.9
258
L8-32
(4E2)
Main Contactor and Cooling
Fan Power Supply Failure
Selection
Determines drive response when a fault occurs with the internal cooling fan.
0: Ramp to stop
1: Coast to stop
2: Fast stop (Decelerate to stop using the deceleration time set to C1-09)
3: Alarm only (“FAn” will flash)
4: Continue operation at reduced speed as set to L8-19.
Default: 1
Range: 0 to 4
260
L8-35
(4EC)
Installation Method
Selection
0: IP00/Open-Chassis enclosure
1: Side-by-Side mounting
2: IP20/NEMA Type 1 enclosure
3: Finless model drive or external heatsink installation
Default: <2> <3>
Range: 0 to 3
260
L8-38
(4EF)
Carrier Frequency
Reduction
0: Disabled
1: Enabled below 6 Hz
2: Enabled for the entire speed range
Default: 2
Range: 0 to 2
261
L8-40
(4F1)
Carrier Frequency
Reduction Off Delay Time
Sets the time that the drive continues running with reduced carrier frequency
after the carrier reduction condition is gone. Setting 0.00 s disables the carrier
frequency reduction time.
Default: 0.5 s
Min.: 0.00
Max.: 2.00
261
L8-41
(4F2)
High Current Alarm
Selection
0: Disabled
1: Enabled. An alarm is triggered at output currents above 150% of drive rated
current.
Default: 0
Range: 0, 1
261
L8-55
(45F)
Internal Braking Transistor
Protection
0: Disabled. Disable when using a regen converter or optional braking unit.
1: Protection enabled.
Default: 1
Range: 0, 1
261
L8-93
(73C)
LSo Detection Time at Low
Speed
Sets the amount of time until baseblock is executed after detecting pull-out at
low speed.
Default: 1.0 s
Min.: 0.0
Max.: 10.0
262
L8-94
(73D)
LSo Detection Level at Low
Speed
Determines the detection level of pull-out at low speed. Default: 3%
Min.: 0
Max.: 10
262
L8-95
(73D)
Average LSo Frequency at
Low Speed
Sets the average number of times pull-out can occur at low speed. Default: 10 times
Min.: 1
Max.: 50
262
<1> Default setting is dependent on parameter o2-04, Drive Model Selection.
<2> Parameter setting value is not reset to the default value when the drive is initialized.
<3> Default setting is determined by the drive model:
Setting 2: Model code CIMR-Po2A0004 to 2A0211, 4A0002 to 4A0165, and 5A0003 to 5A0242
Setting 0: Model code CIMR-Po2A0250 to 2A0415 and 4A0208 to 4A0675
B.8 L: Protection Function
YASKAWA SIEP YAIP1U 01B AC Drive - P1000 Technical Manual 447
B
Parameter List