Restart Control After Power Failure; Restart Control After Momentary Power Failure (<2 Sec); Restart Function After Power Failure <Option> (>2 Sec) - Hitachi RCUE40AG2 Service Manual

Control System Control System Control System


Restart control after power failure:


NOTE:
Momentary power failure: Power
failure of 13m seconds~2 seconds,
below 160V.
In case of a power failure of over 2
seconds, it is possible to re-start the
unit by optional function. If restart
function after power failure is not
selected, the units are not re-started
in spite of ending the power failure.
In that case, the units should be
started according to the operation
start process.

NOTE:
In case that power failure occurs
during unit stop, the units shall
be stopped when power supply
returns.
pag. 56 pag. 56 pag. 56

4.6. Restart control after power failure

4.6.1. Restart control after momentary power failure (<2 sec)
In momentary power failure, all settings are saved, so after 3 minutes time guard,
unit is run automatically with the same operation mode as before the power
failure.
4.6.2. Restart function after power failure <Option> (>2 sec)
When this function is valid, even in spite of over 2 seconds power failure, units are
run automatically with the same operation mode as before the power failure (after
delay time guard).
To be valid this function, DSW1- pin 2 on PCBb shall be ON.
Momentary power
failure 13 m/s~2 sec,
under 160V
Time guard
SMGB0003 rev.0-01/2007 SMGB0003 rev.0-01/2007 SMGB0003 rev.0-11/2006 SMGB0003 rev.0-01/2007
3 min
Selected by Dip Switch
Power failure over 2 sec.
In case that function of
restart from power failure is
selected.
3 min
Time guard