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6 Status messages
6.2 Resetting after an error message
48
EMS2…-SWD Electronic motor starter
10/19 MN120008EN
www.eaton.com
6.2 Resetting after an error message
The acknowledging (reset) of an error can be carried out in various ways.
The options depend on the nature of the error (
•
Automatic
reset
•
Setting via SWD required
(
section 3.4.1.2, “Cyclicaloutput data”, page 26)
•
Manual
reset
•
via the button on the front of the device,
•
via SWD
(
section 3.4.1.2, “Cyclicaloutput data”, page 26)
6.2.1 Automatic reset
When a phase or a motor that is not connected fail, or in the case of an oper-
ation beneath the minimum current I
min
, the EMS2-…-SWD electronic motor
starter is automatically reset as soon as the error has been remedied.
If an automatic reset is to take place after a message via the motor protec-
tion, this must be configured accordingly (see
caloutput data”, page 26). The automatic reset takes place after approx.
20 minute scooling-down time.
It is possible to reset the device using a manual command during this period
of time. The condition for this is that the cooling-down time for a manual
reset (approx. 2 minutes) has expired. (One of the LEDs
L
,
R
or
ON
flashes).
WARNING
If an error is acknowledged and the bit SDIR/SDIRR or SDIRL is
set to HIGH, this causes an automatic start-up of the motor
starter,
section 3.4.1.2, “Cyclicaloutput data”, page 26.
In this case, use external measures
(e. g. by means of an interlock) to ensure that there is no hazard-
ous situation.
→
With a manual acknowledgment of the error, which can also take
place via the bus, the motor starts up as long as the triggering
signal is applied. With a manually monitored reset, edge monitor-
ing is required.
According to the ATEX guideline, there must be no automatic
start-up.
→
An automatic reset with an operation of the EMS2-…-SWD elec-
tronic motor starter is
not
permissible in potentially explosive
Ex e increased safety (ATEX) areas.
Содержание EMS2 SWD Series
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