Vega VEGATOR 121, Operating Instructions Manual

15

6 Setup

VEGATOR 121 • 

57662-EN-210714

triggered by pressing the test key. This function test is not carried out 

automatically when switching on the VEGATOR 121. 
Note:

When connecting sensors without this defined switching sequence, 

the switch-on monitoring must be deactivated.

With these switches you can delay the changeover of the relays by 

the set time. This can be useful, e.g. with fluctuating product surfaces, 

for preventing unwanted switching commands. The switch-on/off 

delays can be set independently of each other. If both switches, e.g. 

of the switch-on delay, are activated, the times sum up. Delays of 2, 6 

or 8 seconds can thus be adjusted.
Information:

Keep in mind that the switching delay of the sensor and controller 

accumulate.

A second relay can be ordered as an option for VEGATOR 121. The 

function of the second relay is determined via this DIL switch. It can 

be configured as fail safe relay or as second level relay. When config

-

ured as level relay, the switching behaviour is identical to relay 1. If the 

instrument is WHG approved, then both relays can be used as WHG 

relay. 

When level switches VEGAVIB, VEGAWAVE, VEGASWING in two-

wire version are connected, a function test can be carried out. The 

test key is recessed behind the front plate of the controller. Press the 

test key for at least one second with a suitable object (screwdriver, 

pen, etc.).
Note:

Keep in mind that downstream connected devices are activated dur-

ing the function test. This allows you to check the correct function of 

the complete measuring system.
By pushing the test key, the circuit to the sensor is interrupted and a 

restart of the sensor is initiated. Through this, the conditions fault sig-

nal, empty and full alarm are simulated. The complete test procedure 

takes approx. 5 seconds. After correct function, the red failure LED 

should not light and depending on the status of the sensor, the relays 

are energized or deenergized.

If the test result is negative, the red failure LED lights up and the 

relays must be deenergized. In this case the whole measuring system 

has to be checked and repaired.
Information:

This test is accepted as proof test acc. to WHG.

6.3  Automatic function test

As an alternative to the manual test via test key, the function test can 

be also carried out automatically. For this purpose, the VEGATOR 121 

Switch-on/Switch-off 

delay

Function relay 2 (op-

tional)

Test key