ABB REF 54, Operator'S Manual

1MRS 750500-MUM

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Operator’s Manual

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When parameter values are changed, the new values take effect immediately, except 
for the special parameters for measuring devices (refer to section “Setting a 
parameter” on page 21). However, the new parameter values must be saved in the 
non-volatile memory as follows:

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1. At technical level, select 

MAIN MENU/Configuration/General/

Store

2. Set the “Store” parameter to “Start/Progress”

3. Press [E] to confirm, the assisting window confirms the storage

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• When [E] is pressed in the MAIN MENU to exit the technical level, the text 

“Save parameters E = Yes, C = No” will appear in the assisting window if a 
parameter has been changed 

• Press [E] to save the changes in the non-volatile memory

• If [C] is pressed, parameters will not be saved in the non-volatile memory until 

storing is initiated next time

• If neither [C] nor [E] is pressed, the changes will be saved when the backlight 

time-out elapses

• If a parameter has been changed and confirmed with [E] as described in section 

“Setting a parameter” but the technical level is not exited as described above, 
the changes will be saved when the backlight time-out elapses

E

parames

E

C

Select parameter

Setting group 1

If numeric value or

character string,

select digit/char.

C

o

n

f

i

r

m

s

e

l

e

c

t

i

o

n

Scroll for

wanted value

for digit/char.

If enumerator,

select item

Confirm

G

i

v

e
p

a

s

s

w

o

r

d
2

Cancel

OR

Setting group 1

Setting group 1

Operation mode

= Definite time

Start current

= 3.1 x In

Operation time

= 041.03 s

Time multiplier

= 0.78

Operation mode

= Definite time

Start current

= 3.1 x In

Operation time

= 041.03 s

Time multiplier

= 0.78

Operation mode

= Definite time

Start current

= 3.1 x In

Operation time

= 041.03 s

Time multiplier

= 0.78

Operation mode

= Definite time

Start current

= 3.1 x In

Operation time

Operation mode

= Definite time

Start current

= 3.1 x In

Operation time

Operation mode

= Definite time

Start current

= 4.1 x In

Operation time

Operation mode

= Definite time

Start current

= 3.1 x In

Operation time
Operation mode

= Indefinite time

Start current

= 3.1 x In

Operation time