5
-68
Battery Operation
Using battery operation the car can be moved to the next floor if the power supply fails. The battery operation, must be enabled by a digital input (H1- = 85).
The battery voltage must be set in parameter L2-11.
Related Constants.
Parameter
No.
L2-11 Battery Voltage
Name
Multi-function Digital Inputs (H1-01 to H1-05)
Function mane Setting
85 Battery operation command
Factory setting
0V
Change during operation
No
V/f
A
Open
Loop
Vector
A
Closed
Loop
Vector
A
V/f
A
Open
Loop
Vector
A
Closed
Loop
Vector
A
Battery operation wiring
SoftCharge
Resistor
P
A
C R
S
T
U
V
W
B
E
Contorl Power
200VClass(DC250V 300V)
400VClass(DC500V 600V)
E
D
P
N
Sx
SC
Battery Operation setting 85
Battery Operation
Battery sequence
The following timing chart shows the sequence of battery operation.
Vpn
Motor speed
UV det level
Coasting
Brake
Fault
C,D input contactor OFF
Battery voltage battery voltage x base speed
300(600 *1 )x2
*1: 400VClass using 600V
Approx. 1min
The power source of these contactors must keep supplying even if power loss.
Battery operation
Battery operation command E
Main Circuit contactor
A,B
A’contactor
Inverter ready
* exteranal operation signal
Approx. 5sec ON
ON
0.2 0.3sec
Approx.
1sec
7
8
4
5
6
No.
1
2
3
Description
When the bus voltage is blow the under voltage level, the inverter detects the under voltage (UV) fault.
Turn off the RUN command.
C and D contactors must be turned off and turn on the motor mechanical brake.
Need the approximately 5sec to start battery operation.
The multi-function digital input which is assigned with the battery operation command (E) must be turned ON.
The A’ contactor must be turned ON after passing 0.2~0.3 sec when A and B main contactors are turned ON.
The RUN commands turns ON after inverter ready status set.
The battery operation time must be within 1min.
E, A, B and A’ contactors must be turned OFF after RUN command OFF.
(CAUTION)
1. Battery operation speed
The speed during the battery operation will be limited as the following formula.
Speed during battery operation= (battery voltage x base speed) / (300Vx2)
When the 400V Class will be 600Vx2
2.Continuous operation is prohibited.
The cooling fan of inverter is stopped due to the low bus voltage.
Therefore the continuous operation of inverter is prohibited.
5
5-
69
5-
70
Battery selection
Use the following battery
Main bus voltage
Control voltage
200V Class
48V
200V
400V Class
96V
400V
Note Main bus voltage during battery operation is decided based on the 10% of motor base speed.
Voltage drop must be less than 5% under the following load condition.
Current of control power: 50W/ control voltage
Current of main power: (motor rated power x speed during battery operation x 200%) /
(battery voltage x 60% (motor efficiency) x motor base speed)
