YASKAWA A1000 HHP - L8: Drive Protection

No.
(Addr.
Hex)
Name Description Values Page
L7-16
(44D)
Torque Limit Enable Time
delay at start
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVOLV
0: Disabled.
1: Enabled.
Note: Set this parameter to 0 to improve the response at the rapid
addition and subtraction velocity at start.
Default: 1
Range: 0, 1
152
L7-30
(1FD)
Regenerative Torque Limit
Mode Selection
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVOLV
Defines the behavior of the regenerative torque limits.
0: Standard mode – Torque Limit is affected by all analog and communication
Torque Limit settings.
1: Independent mode – Only L7-03, L7-04 and Regen Torque Limit analog
input setting affect the regenerative quadrants.
Default: 0
Range: 0, 1
152
u
L8: Drive Protection
No.
(Addr.
Hex)
Name Description Values Page
L8-02
(4AE)
Overheat Alarm Level
All Modes
An overheat alarm occurs when heatsink temperature exceeds the L8-02 level.
Default:
<1>
Min.: 50 °C
Max.: 150 °C
152
L8-03
(4AF)
Overheat Pre-Alarm
Operation Selection
All Modes
0: Ramp to stop. A fault is triggered.
1: Coast to stop. A fault is triggered.
2: Fast Stop. Decelerate to stop using the deceleration time in C1-09. A fault
is triggered.
3: Continue operation. An alarm is triggered.
4: Continue operation at reduced speed as set in L8-19.
Default: 3
Range: 0 to 4
153
L8-05
(4B1)
Input Phase Loss Protection
Selection
All Modes
Selects the detection of input current phase loss, power supply voltage
imbalance, or main circuit electrolytic capacitor deterioration.
0: Disabled
1: Enabled
Default: 1
Range: 0, 1
153
L8-07
(4B3)
Output Phase Loss
Protection Selection
All Modes
0: Disabled
1: Enabled (triggered by a single phase loss)
2: Enabled (triggered when two phases are lost)
Default: 1
Range: 0 to 2
154
L8-09
(4B5)
Output Ground Fault
Detection Selection
All Modes
0: Disabled
1: Enabled
Default:
<1>
Range: 0, 1
154
L8-10
(4B6)
Heatsink Cooling Fan
Operation Selection
All Modes
0: During run only. Fan operates only during run for L8-11 seconds after stop.
1: Fan always on. Cooling fan operates whenever the drive is powered up.
Default: 0
Range: 0, 1
154
L8-11
(4B7)
Heatsink Cooling Fan Off
Delay Time
All Modes
Sets a delay time to shut off the cooling fan after the Run command is removed
when L8-10 = 0.
Default: 60 s
Min.: 0
Max.: 300
155
L8-12
(4B8)
Ambient Temperature
Setting
All Modes
Enter the ambient temperature. This value adjusts the oL2 detection level.
Default: 40 °C
Min.: -10
Max.: 50
155
L8-15
(4BB)
oL2 Characteristics
Selection at Low Speeds
All Modes
0: No oL2 level reduction below 6 Hz.
1: oL2 level is reduced linearly below 6 Hz. It is halved at 0 Hz.
Default: 1
Range: 0, 1
155
L8-18
(4BE)
Software Current Limit
Selection
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f V/f w PG OLV CLVV/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f V/f w PG OLV CLV
0: Disabled
1: Enabled
Default: 0
Range: 0, 1
155
A.10 L: Protection Function
288
YASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual