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Hitachi SJ300 Series User Manual

Page 18

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Chapter 2 – Explanation of Functions

X

X

RS

10msor more

Emergency stop mode

APL1

FW

500ms or more

:ON

(Note 1) Do not turn contactor X and

X

ON at the same time. Be sure to allow 10 seconds or more for

the changeover period.

(Note 2) Do not turn APL1 ON while the inverter is driven by the mains with contactor X ON.
(Note 3) Changeover to battery backup mode and back is valid only when the inverter is stopped. Do

not turn APL1 OFF during the battery backup mode.

(Note 4 Surge current must not exceed 500A in case of connecting the battery at emergency. Select a

contactor for

X

which can withstand the surge current.

(Note 5) If there has been a fault when going into the emergency driving mode, clear the error first.
(Note 6) Output frequency of the inverter during emergency driving mode (f

E

) must not exceed the

following value.

3

2

35

.

1

V

V

f

f

m

B

b

E

Ч

Ч

Ч

fb

: Rated (base) frequency of the motor

V

B

: Voltage of the battery

V

m

: Rated voltage of the motor

(Note 7) Under-voltage trip will occur when the UPS voltage comes down to AC100V-15% during

emergency driving operation.

< Additional setting items>

Function

Code

Function Name

Remarks

C001

- C008

Intelligent input

terminals 1

∼8

51 : APL1

18