YASKAWA L1000A Technical Manual page 127

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Using a Battery for the DC Bus and 24 V Power Supply Unit Option for the Control Circuit
Follow the instructions when using a 24 V Power Supply Unit option for the control circuit and a battery for the main
circuit. The main circuit battery voltage must be higher than 48 Vdc for 200 V class drives and 96 Vdc for 400 V class
drives.
Wiring
Yaskawa offers a 24 V Power Supply Option for the control circuit that is useful in applications unable to connect to a
backup battery greater than 250 V. Wiring instructions can be found in
the 24 V Power Supply Option, refer to the manual provided with the option.
Figure 4.16
Battery for DC bus
48 to 340 Vdc
96 to 680 Vdc
Figure 4.20 Using a Battery for the DC Bus and 24 V Power Supply Unit Option for the Control Circuit
Operation Sequence
Starting Rescued Operation
1. Open contactor B and wait at least 5 seconds.
2. Set the input terminal programmed for Rescue Operation (H1-
3. Close contactors A and C.
4. Set the Up/Down command.
Ending Rescue Operation
1. After the car has stopped, open contactors A and C.
2. Clear the input terminal set for Rescue Operation (H1-
3. Wait at least 0.5 s and then close contactor B to return to operation with normal power supply.
YASKAWA ELECTRIC SIEP C710616 38A YASKAWA AC Drive L1000A Technical Manual
Magnetic Contactor A
DC bus power supply
L1
L2
L3
Magnetic Contactor B
Magnetic Contactor C
Battery for 24 V
control circuit Power
Supply
24 Vdc
Unit
H1- = 55
(Rescue Operation)
Magnetic Contactor Sequence
Magnetic Contactor B
5 s
Magnetic Contactor A
Magnetic Contactor C
H1- = 55
(Rescue Operation)
4.6 Setup Procedure for Elevator Applications
Figure 4.20. For a more detailed explanation of
L1000A
B2
B1
+1
+2
R/L1
S/L2
T/L3
-
Control
Power supply
CN19 circuit
1
4
∼S
S
3 8
SC
0.5 s
= 55).
= 55).
U/T1
V/T2
W/T3
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