Automatic Sequences - hager HIC4 Serie Notice D'utilisation

Operation

Automatic sequences

Manual Mode/Automatic Mode
permutation/power supply reappearance
• As soon as the selector switch is switched to automatic,
the automatic mode is active
• Voltages and frequencies are verified to define new stable
position of the changeover switch
New stable position of the chaneover swicth
Changeover switch Sources availability
initial position
Priority source
Priority source available
emergency source available or unavailable
Priority source Priority source unavailable for MFT time period,
emergency source available or unavailable
Emergency
Emergency source available
source priority source unavailable
Emergency Emergency source available
source
priority source available for MRT time period
Position 0 Priority source available
emergency source unavailable
Position 0 Priority source available
emergency source available
Position 0 Priority source available
emergency source available
Position 0 Priority source available
emergency source unavailable
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The switch immediately transfers to new stable position as soon as the keyswitch is turned fromManual to
Automatic mode or as soon as Power comes back.
Loss of priority source automatic sequence
This sequence is started as soon as the switch is in automatic
mode and in priority position (position I - source 1).
• source 1 is available
• transfer switch is in position I
• source 2 is available or unavailable
Available source
Source being with in programmed voltage and frequency
settings, phases rotation being correct.
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• The same table can be taken into account after complete
power supply loss (the product must be completely
discharged to reset =3 minutes.)
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Specific feature: remote transfer control
It is possible to transfer from main source to emergency
source before DTT finishes up. If it is setup to its maximum
values (60s), it is possible to allow transfer closing terminals
207-208 (CTS).
Refer to timer menus for MFT, MRT or DTT timers
definition.
New position
Priority source
Emergency source. If emergency
source unavailable start emergency
source first and wait for DTT timer
period before transfer
Emergency source
Priority source
Available source to count down MRT
before transfer to priority source
Priority source
Emergency source
No action (because no supply).
When supply becomes available
change to priority source or
emergency source