Functions
5.1 Basic functions
3KC ATC6500 transfer control device
Manual, 05/2019, L1V30538268002A-01
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5.1.8
Simulation of priority source failure (test mode)
In addition to the automatic test, a failure of the priority source can be simulated.
This simulation can be performed in several ways:
●
By pressing the TEST key for 5 seconds or more (see TEST operating mode) until the
display of the simulation duration is visible
●
Via the Commands menu, using the command C19 (see chapter Commands menu
(Page 70))
●
By means of a digital input with the Commands menu function C(xx) and the
corresponding function index 19
The simulation involves considering a three-minute absence of the priority source, even if it
is actually present. During this time the message SIMUL xxx appears on the main page with
a countdown of the simulation time:
The simulation will cause the start of the generator (if present) and a load transfer exactly as
in the automatic cycle.
Note:
The voltage supply is interrupted briefly during the transfer to the secondary source.
Stopping the simulation
The simulation can be stopped at any time by pressing the OFF key, thereby placing the
device in the OFF mode.
Note
If the simulation is performed via the Commands menu, it must be started from the OFF
mode. Only in the OFF mode is it possible to execute commands (see chapter Commands
After selecting and confirming the command C.19 the Commands menu is exited. The
device switches automatically to the automatic mode and starts the simulation.
