YASKAWA L1000A Quick Start Manual page 122

4 Start-Up Programming & Operation
• Voltage Lower Than 190 to 250 Vdc for 200 V Class Drives, 380 to 500 Vdc for 400 V Class Drives, and 500 to 720
Vdc for 600 V Class Drives
Figure 50
DC bus power supply
200 V Class: 190 to 250 Vdc
400 V Class: 380 to 500 Vdc
600 V Class: 500 to 720 Vdc
YEA_common
Figure 57 Voltage Lower Than 190 to 250 Vdc for 200 V Class Drives, 380 to 500 Vdc for 400 V Class Drives,
120
(A)
DC bus
power supply
L1
L2
L3
Magnetic Contactor C
Battery for 24 V
Power
control circuit
Supply
24 Vdc
Unit
H1- = 55
(Rescue Operation)
Magnetic Contactor Sequence
Magnetic Contactor B
Magnetic Contactor A
Magnetic Contactor C
H1- = 55
(Rescue Operation)
and 500 to 720 Vdc for 600 V Class Drives
YASKAWA ELECTRIC TOEP C710616 38H YASKAWA AC Drive-L1000A Quick Start Guide
+3
+1
Relay
(B)
R/L1
S/L2
T/L3
-
CN19
S3 to S12
SC
After the DC bus voltage falls lower
than the battery voltage
L1000A
Current
sensor
+
Power
supply
Control
OPE
board
board
0.5 s
U/T1
V/T2
W/T3