YASKAWA T1000V - Page 225

5.11 S: Functions for Textile Applications
YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual 225
Parameter Details
5
■ S4-06: KEB End Voltage
Sets the DC bus voltage level at that the drive assumes the power supply has returned. If this level is exceeded for longer
than S4-07 the drive starts reaccelerating to the set frequency reference. The setting value depends on the selection in
parameter S4-02.
Note: 1. This parameter is disregarded by the drive is an input terminal is set for KEB 1 (H1- = 65 or 66).
2. S4-06 must be set to higher value than S4-11.
■ S4-07: KEB End Detection Time
Sets the time for that the DC bus voltage must exceed the level set in S4-06 in order to end the KEB function and
reaccelerate to the set frequency reference.
Note: This parameter is disregarded by the drive is an input terminal is set for KEB 1 (H1- = 65 or 66).
■ S4-08: KEB 1 Phase Loss Detection Level
Defines the DC bus voltage ripple that indicates input a one loss, thus triggering the KEB function. A setting of 0 V will
keep the KEB function from being triggered when one phase loss occurs.
■
S4-09: KEB 1 Phase Loss Sampling Time
Sets the sampling time used to detect one input phase loss.
■
S4-10: KEB 1 Phase Loss Detection Time
Sets the time that the ripple in the DC bus voltage must exceed the level set in S4-08 to trigger one phase loss detection.
■
S4-11: KEB Target Voltage
When KEB 1 or KEB 3 has been selected and S4-02 is set to 0, the drive attempts to keep the DC bus voltage at the target
voltage defined in S4-11 multiplied by E1-01.
Note: 1. This parameter is disabled when KEB 2 is enabled.
2. S4-06 must be set to higher value than S4-11.
■ S4-12: KEB Hold Time
Once KEB is complete, S4-12 sets the time to hold the frequency reference before reacceleration.
No. Name Setting Range Default
S4-06 KEB End Voltage 0.0 to 200.0% 200.0%
No. Name Setting Range Default
S4-07 KEB End Detection Time 0 to 2000 ms 0 ms
No. Name Setting Range Default
S4-08
KEB 1 Phase Loss Detection Level
0 to 800 V 0 V
No. Name Setting Range Default
S4-09 KEB 1 Phase Loss Sampling Time 0 to 3000 ms 0 ms
No. Name Setting Range Default
S4-10 KEB 1 Phase Loss Detection Time 0 to 10 ms 10 ms
No. Name Setting Range Default
S4-11 KEB Target Voltage 0.80 to 1.50 1.35
No. Name Setting Range Default
S4-12 KEB Hold Time 0.0 to 10.0 s 0.0 s