Bender VMD4105-D-2 B93010045 Hoja De Datos

Function

15

The self test cannot be started unless the power generation system has been 
started by the VMD460-NA (both alarm LEDs off) and the contact monitoring 
is installed and activated.
Start of the manual self test:

1. Press the test button in the standard display (> 1.5 s) or
2. select "TEST" from the menu display

The alarm relays K1 and K2 switch during the self test and open resp. close the 
contacts 11/12/14 and 21/22/24.
The self test continues to run until the defined disconnection time t

off

 at 

undervoltage condition has elapsed.  

During the self test, the times are measured until the switching command for 
the coupling switches (t

off (DEVICE)

) is activated or  until the coupling switches 

(t

off (TOTAL)

) trip. These periods are automatically indicated by alarm displays 

for the measuring channels 15 (t

off (TOTAL)

) and 16 (t

off (DEVICE)

). They are also 

available in the "Alarm/meas. value" menu.

The activation of this function is optional and can be used to separate the 
power generation system from the supply network remotely via an external 
contact. After activating the remote control, the coupling switch will be 
switched after  ≤  50 ms. 

This function can be deactivated in the "Settings / General / Remote Trip = off" 
menu, if not required.