socomec ATyS C55 - Availability Conditions and Test Mode

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EN
ATySController C55/65 - 549866C - SOCOMEC
The switch may transfer as soon as automatic mode has been enabled.
Test Mode: This allows an authorized maintenance person to initiate a transfer to the backup source (default Source 2) and
to decide when to go back to the priority source (default Source 1). The test can be initiated in the "TEST" menu located in
"MAIN MENU" > "CONTROL", user can select a NO LOAD TEST (to start the generator only with no load transfer) or LOAD
TEST (start the genset and transfer the load).
The test can also be initiated directly by pressing the "TEST" button on the HMI, by default this button will launch a LOAD TEST
but this button can be changed to NO LOAD TEST in the menu TEST BUTTON USE in "MAIN MENU" > "PARAMETERS" >
"DISPLAY" > "OPTIONS". The TEST mode can be launched from both MANUAL or AUTOMATIC modes.
To switch to TEST mode, make sure there are no external inhibitions and click the automatic operation button:
The LCD will prompt the user to enter the operator password. The TEST mode LED will light up.
The switch may transfer as soon as TEST mode has been enabled, respecting the elevator timers, in-phase timers
(for open transition switches with positions I-II) and center-off position timer (if the switch has a 0 position).
Inhibit Mode: This mode is activated in case of major faults or with inputs such as switch cover open or during maintenance
operations. In inhibited mode the switch will not be operable using the controller.
These modes can also be selectable through the display in the CONTROL menu, through inputs or through communications;
LED will indicate the state of the switch.
Note: to change the operation mode, a password might be required.
12.4. Availability conditions
There are 3 different status for the sources:
- Busbar dead
• No voltage present on the source (all voltages below 50V).
- Source present
• Voltage present (at least 1 phase above or equal to 50V) but availability conditions are not reached (see
“Source available” below)
- Source available
• To consider the source available:
• the voltage and frequency should be inside the limits set in the operating range
• all phases should be present (according to the network conguration selected)
• sources should not be set by an input as unavailable / inhibited
• phase rotation should be ok (if check rotation is selected in the menu)
For phase / neutral wire loss detection :
- Loss of Neutral: will be detected in all cases except for balanced networks with balanced loads, in this case the
controller will not detect the loss of the neutral connector unless the load has a minimum value of
unbalance.
- Loss of Phase: will be detected in all cases.
Note: The controller will not detect any phase/neutral wire failure downstream of the switching device.