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10.5. Test operating mode
TEST button on the HMI can be used (by default) to perform a TEST ON LOAD (as standard) or TEST OFF LOAD and can be configured
inside the PARAMETERS/DISPLAY/OPTIONS menu (TEST BUTTON USE).
TEST ON LOAD Main-Gen: a test on load sequence will start by sending a start-gen signal to the secondary source (if in MAIN - GEN) ,
and will initiate a transfer to the the secondary source, once the test has ended the switch will transfer back to the priority source.
TEST OFF LOAD will initiate starting of the genset but will not give the order to transfer to the secondary source when it becomes
available.
The duration of the tests can be limited (in the configuration) or can be set to Unlimited, when set to unlimited the user will have to press
the test button again to stop the tests.
This operation can also be performed with an input, using the EXT TEST ON LOAD function.
NOTE: TEST ON LOAD will cause a load supply
interruption when testing the transfer function as the
load will change from one source to another in open
transition.
10.6. Control Menu
There are 3 type of commands available in the control menu and all of them require the operator profile password. Those commands are:
HZI855
MODE / POSITION:
permits changing the operating mode, change position in CTRL mode and start/stop the gensets remotely (also in
CTRL mode)
MODES:
• AUTOMATIC: Standard automatic functioning of the controller
• MANUAL / CTRL: Control of the switch manually using the controller to give orders to the switch. Buttons I-0-II are unblocked on the
front face.
• INHIBIT: Both CTRL and AUTO functions are inhibited until the mode changes. Message on the main dashboards (1.1 and 2.1) and
buttons I-0-II, AUTO and CTRL will disable this mode but no remote orders will be taken into account.
NOTE: For a total inhibition, the inhibition inputs have to be used.
HZI855
CHANGE POSITION:
(only in CTRL mode) permits sending orders to go to position 1, 0 (center-off) or 2 to the switch device.
GENSET SOURCE 1/2:
permits START or STOP the gensets installed as source 1 or 2.
NOTE: The CONTROL/MODE menu is an “order” menu,
to activate commands, but it doesn’t show the current
mode or position (to visualize that the user needs to go
to the dashboard screens).
Example: mode can be inhibited, but when entering
the menu the mode will say “automatic” (which is not
the current mode, it’s just a list of possible orders to
be used.