Page 187 - L . V S W I T C H G E A R
P. 187
Timers intelligent
The Ɵmers
It’s a device which control in pe-
ƌŝŽĚ ƟŵĞ ĨŽƌ ƐƚĂƌƚ ĂŶĚ ƐƚŽƉƉŝŶŐ ĨŽƌ
ĞůĞĐƚƌŝĐĂů ůŽĂĚƐ ďLJ ƐĞƫŶŐ ƟŵĞ ͘
TLJpe of Ɵmers:
On delay timer:
DĂŬĞ ĚĞůĂLJ ƐƚĂƌƟŶŐ ƟŵĞ ĂŶĚ ŝƚ ďLJ ƐĞƚ ƟŵĞƌ ŝŶ ĐĞƌ-
ƚĂŝŶ ƉĞƌŝŽĚ ƟŵĞ ĂŶĚ ĂŌĞƌ ĞŶĚ ƚŚŝƐ ƟŵĞ ƐƚĂƌƚ ǁŽƌŬ͘
the sLJmbol for Ɵmers :
As this shape:
tŚĞŶ ƉƌĞƐƐ ŽŶ ƐƚĂƌƟŶŐ ĚŽŶ͛ƚ ŐŝǀĞ ĚŝƌĞĐƚ ƐŝŐŶĂů
ĞdžĐĞƉƚ ĂŌĞƌ ƉĞƌŝŽĚ ƐĞƫŶŐ ƟŵĞ ǁŚŝĐŚ ƐĞůĞĐƚĞĚ
ďLJ ƟŵĞƌ ;ϯ ƐĞĐͿ͘
Kī delaLJ Ɵmer:
/ƚ͛Ɛ ƟŵĞƌ ƵƐĞĚ ŝŶ ƐƚĂŝƌƐ ĂŶĚ ĞƚĐ͙ ͕ ƵƐĞĚ ƚŽ ĚĞůĂLJ
ƐƚŽƉƉŝŶŐ ƚŚĞ ůŝŐŚƟŶŐ ĂŶĚ ŝƚ ǁŽƌŬ ǁŚĞŶ ƉƌĞƐƐ ConnecƟng the
on the switch and when disconnect or push up Ɵmer in control
on the switch , the output remain working for circuit:
ƐĞƫŶŐ ƟŵĞ ͘
dŚĞ ƚĞƌŵŝŶĂůƐ ŶƵŵďĞƌ Ϯ ĂŶĚ ϭϬ͗
ŽŶŶĞĐƚĞĚ ĞůĞĐƚƌŝĐĂů ƐŽƵƌĐĞ ƚŽ ƚŚŝƐ
terminal.
The terminals number 8 , 9 , 11 and 1 ,
3 , 4 :
It’s normal open and normal closed
that means auxiliary contacts.
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