YASKAWA A1000 Installation Guide

60 YASKAWA ELECTRIC TOEP C710616 50B YASKAWA AC Drive - A1000 6-Phase/12-Pulse Input Installation Guide
B.1 L: Protection Function
B.1 L: Protection Function
 L8: Drive Protection
No.
(Addr.
Hex)
Name Description Values
L8-01
(4AD)
Internal Dynamic Braking
Resistor Protection Selection
(ERF type)
0: Resistor overheat protection disabled
1: Resistor overheat protection enabled
Default: 0
Range: 0, 1
L8-02
(4AE)
Overheat Alarm Level
An overheat alarm occurs when heatsink temperature exceeds the L8-02
level.
Default:
<1>
Min.: 50°C
Max.: 150°C
L8-03
(4AF)
Overheat Pre-Alarm
Operation Selection
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
L8-05
(4B1)
Input Phase Loss Protection
Selection
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
L8-07
(4B3)
Output Phase Loss Protection
Selection
0: Disabled
1: Enabled (triggered by a single phase loss)
2: Enabled (triggered when two phases are lost)
Default: 1
Range: 0 to 2
L8-09
(4B5)
Output Ground Fault
Detection Selection
0: Disabled
1: Enabled
Default: <1>
Range: 0, 1
L8-10
(4B6)
Heatsink Cooling Fan
Operation Selection
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
L8-11
(4B7)
Heatsink Cooling Fan Off
Delay Time
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
L8-12
(4B8)
Ambient Temperature Setting Enter the ambient temperature. This value adjusts the oL2 detection level.
Default: 40°C
Min.: -10
Max.: 50
L8-15
(4BB)
oL2 Characteristics Selection
at Low Speeds
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
L8-18
(4BE)
Software Current Limit
Selection
0: Disabled
1: Enabled
Default: 0
Range: 0, 1
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
L8-27
(4DD)
Overcurrent Detection Gain
Sets the gain for overcurrent detection as a percentage of the motor rated
current. Overcurrent is detected using the lower value between the
overcurrent level of the drive or the value set to L8-27.
Default: 300.0%
Min.: 0.0
Max.: 300.0
L8-29
(4DF)
Current Unbalance Detection
(LF2)
0: Disabled
1: Enabled
Default: 1
Range: 0, 1
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

YASKAWA A1000 Specifications

General

Type	AC Drive
Series	A1000
Input Voltage	200-240V, 380-480V
Frequency Range	0-400 Hz
Horsepower Range	0.5 to 1000 HP
Power Range	0.4 to 630 kW
Control Method	V/f Control
Overload Capacity	150% for 60 seconds
Braking	Dynamic Braking
Communication	Modbus
Safety	Safe Torque Off (STO)
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheat
Operating Temperature	-10 to +50°C
Storage Temperature	-20 to 60°C
Humidity	5 to 95% RH (non-condensing)
Enclosure	IP20