YASKAWA A1000 HHP - Page 289

No.
(Addr.
Hex)
Name Description Values Page
L8-19
(4BF)
Frequency Reduction Rate
during Overheat Pre-Alarm
All Modes
Specifies the frequency reference reduction gain at overheat pre-alarm when
L8-03 = 4.
Default: 0.8
Min.: 0.1
Max.: 0.9
153
L8-32
(4E2)
Main Contactor and Cooling
Fan Power Supply Failure
Selection
All Modes
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
155
L8-38
(4EF)
Carrier Frequency
Reduction
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PG OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PG OLV
CLV/PM
CLV
0: Disabled
1: Enabled below 6 Hz
2: Enabled for the entire speed range
Default:
<4>
Range: 0 to 2
156
L8-40
(4F1)
Carrier Frequency
Reduction Off Delay Time
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PG OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PG OLV
CLV/PM
CLV
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:
<5>
Min.: 0.00 s
Max.: 2.00 s
156
L8-41
(4F2)
High Current Alarm
Selection
All Modes
0: Disabled
1: Enabled. An alarm is triggered at output currents above 150% of drive rated
current.
Default: 0
Range: 0, 1
156
L8-78
(2CC)
Module Output Loss
Detection (LF3)
All Modes
Detects the loss of an output phase in any of the inverter output modules.
0: Disabled
1: Enabled
Default: 1
Range: 0, 1
157
L8-86
(2F3)
Detection selection when
panel fan fails
All Modes
Detects the loss of the drive panel fan by the panel fan input.
0: Ramp Stop (Fault)
1: Coast Stop (Fault)
2: Fast Stop (Fault)
3: Continue Running (Alarm)
4: As for continue Running at L8–19 Speed
5: Disabled
Note: Settings 3 and 4 reduce inverter O/L level from 100% to 80 %.
Default: 1
Range: 0, 5
157
L8-87
(2F4)
Detection selection when
diode converter(s) fan(s) fail
All Modes
Detects the loss of the diode converter fan(s) by the fan control input.
0: Ramp Stop (Fault)
1: Coast Stop (Fault)
2: Fast Stop (Fault)
3: Continue Running (Alarm)
4: As for continue Running at L8–19 Speed
5: Disabled
Note: Settings 3 and 4 reduce inverter O/L level from 100% to 80 %.
Default: 1
Range: 0, 5
157
<1> Default setting is dependent on parameters C6-01, Drive Duty Selection, and o2-04, Drive Model Selection.
<4> Default setting is dependent on parameters A1-02, Control Method Selection, and o2-04, Drive Model Selection.
<5> Default setting is dependent on parameter A1-02, Control Method Selection.
A.10 L: Protection Function
YASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual
289
A
Parameter List