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1 latched or un-latched alarm, Latched or un-latched alarm – Crompton Controls M10 User Manual

Page 12

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10

Wiring

Emotron AB 01-2550-01r3

5.1

Latched or un-latched alarm

Fig. 3

Wiring example for latched or un-latched alarm.

When using DC voltage, alternatively see Fig. 11, page 29.
If terminal 5 is not connected, see Fig. 3, the alarm is not automatically reset
when the machine load is normal again after an alarm situation. The alarm is
then latched; function "Latched alarm". The alarm can then be manually reset
by pressing both PAR and VAL buttons at the same time for 3 seconds. It is only
possible to reset an alarm if the power level is on the "right side" of the set alarm
level (depending on under- or overload monitoring).

If, however, terminal 5 is connected to an AC or DC signal the alarm will be
reset automatically (un-latched alarm). This is only possible if the power level is
on the "right side" of the set alarm level.

Un-Latched (Auto Reset)
when voltage supplied to
terminal 5 and 6.
Latched Alarm when
terminal 5 and 6 opened
(not connected).

R

E

S

E

T

5 6 7 8

5 6 7 8

MAX 240 VAC (alt. DC-)

N (alt. DC+)

Unlatched

(Auto Reset)

Latched