Balluff BDD 750 S Series, Руководство пользователя, Страница: 22 / 44

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5.4. Preselection 1 Menu
MODE 1
Switching conditions for preselection 1. Output/ relay/ display switches under the following
conditions:
0 |RESULT|>=|PRES|
Absolute value of the display value is greater or equal absolute value
of PRESELECTION 1
With HYSTERESIS 1 not equal 0 the following switching condition is
applied:
Display value >= PRESELECTION 1

ON,
Display value < PRESELECTION 1
– HYSTERESIS 1 
OFF
1 |RESULT|<=|PRES|
Absolute value of the display value is less or equal absolute value of
PRESELECTION 1 (start-up suppression (START UP DELAY) is
advisable)
With HYSTERESIS 1 not equal 0 the following switching condition is
applied:
Display value <= PRESELECTION 1

ON,
Display value > PRESELECTION 1 + HYSTERESIS 1

OFF
2 |RESULT|=|PRES|
Absolute value of the display value is equal absolute value of
PRESELECTION 1
A range (Presel/- ½ Hysteresis) can be defined and monitored
in conjunction with the hysteresis.
With HYSTERESIS 1 not equal 0 the following switching condition is
applied:
Display value > PRESELECTION 1 + ½ HYSTERESIS 1

OFF,
Display value < PRESELECTION 1 - ½ HYSTERESIS 1

OFF
3 RESULT>=PRES
Display value is greater or equal PRESELECTION 1, e.g. overspeed
With HYSTERESIS 1 not equal 0 the following switching condition is
applied:
Display value >= PRESELECTION 1

ON,
Display value < PRESELECTION 1
– HYSTERESIS 1 
OFF
4 RESULT<=PRES
Display value is less or equal PRESELECTION 1, e.g. underspeed
(start-up suppression (START UP DELAY) is advisable)
With HYSTERESIS 1 not equal 0 the following switching condition is
applied:
Display value <= PRESELECTION 1

ON,
Display value > PRESELECTION 1 + HYSTERESIS 1

OFF
5 RESULT=PRES
Display value is equal PRESELECTION 1. A range (Presel/-
½ Hysteresis) can be defined and monitored in conjunction with the
hysteresis.
With HYSTERESIS 1 not equal 0 the following switching condition is
applied:
Display value > PRESELECTION 1 + ½ HYSTERESIS 1

OFF,
Display value < PRESELECTION 1 - ½ HYSTERESIS 1

OFF
6 RES>=PRES-TRAIL
Trailing PRESELECTION 1:
Display value is greater or equal PRESELECTION 2
–
PRESELECTION 1

ON,
PRESELECTION 1 is the trailing value from PRESELECTION 2
7 ERROR SET Error message for device errors