Yaskawa L1000E AC Drive Technical Manual for CIMR-LE Models for Elevator Applications - Manual (Page 230)

5.8 L: Protection Functions
230 YASKAWA ELECTRIC SIEP YAIL1E 01A YASKAWA AC Drive L1000E Technical Manual
Overload Tolerance for Internal Braking Transistor
Below, Figure 5.42 show the overload tolerance level for the drive’s built-in braking transistor.
Figure 5.42
Figure 5.42 Overload Tolerance for Braking Transistor (2A0018 to 2A0144 and 4A0009 to 4A0075)
■ L8-77: Oscillation Suppression
If speed oscillations with the same frequency as the output frequency occur with an unloaded motor, parameter L8-77 can
be adjusted to suppress these oscillations. While watching the motor speed, increase or decrease L8-77 until the
oscillation disappears.
This parameter rarely requires adjustment.
■ L8-88: Safe Disable Operation Mode
Determines the operation performed by the drive when the Safe Disable input is activated.
Setting 0: Mode 0
Setting 1: Mode 1
When the Safe Disabled Input is triggered, the operator displays and alarm, and the corresponding output terminal will
react as follows:
No. Parameter Name Setting Range Default
L8-77 Oscillation Suppression –100 to 100 0
No. Parameter Name Setting Range Default
L8-88 Safe Disable Operation Mode 0 or 1 1
L8-88
Safe Disable Operation
Selection
Alarm Display during Safety Disable Alarm Output (H2-†† = 10)
Drive Ready
(H2-†† = 6)
0 (mode 0) Hbb ALM flashes ON OFF
1 (mode1) Hbb ALM flashes OFF ON
100
%
50
30
20
10
5
3
2
Braking Torque = 30%
50%
70%
100%
130%
150%
1 10 2 5 200 500 1000 2000 100 50 20
Operation Time (s)
(%)
(%ED)
8
16
5
43
21
29
67
80 170
150
106
58
90
160
270
380
420
1200
600
1800
230
500
760
Usage
common_
TMonly