MYERS MP Series, Инструкция по установке, эксплуатации и обслуживанию

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18
1.3 Wiring
Purpose: Describes how to wire the MP2000E System.
Danger: The utility input power line must have circuit breaker or fuse
protection as per the local
electrical code. It is referred as “Upstream Circuit
Breaker” in this manual.
Before wiring the system, determine the size of the load:
TIP: Each of the six contacts are of form C type, meaning Normally Open (NO), Common (C)
and Normally Closed (NC) dry contact rated for 1 Amp at 120VAC. Each of these contacts
can be individually programmed to energize and stay latched for ON BATTERY, LOW
BATTERY, TIMER, ALARM, FAULT and many other conditions as described in subsequent
chapters. The ON BATTERY contact(s) are activated as soon as the MP2000E is transferred
to Battery mode. LOW BATTERY contact(s) are activated only in the Battery mode, as soon
Is the load over
or
under 2000 VA
/1500 W?
Put the Intersection in FLASH mode as soon as
MP2000E goes into Battery mode, by connecting any
one of the six programmed contacts to "ON BATT"
from C, NO or NC type at the MP2000E to the AUTO /
FLASH circuit of any controller.
Run the intersection in FLASH mode connected as above.
or
Keep the intersection running normal in full phase until the battery
completely depletes down to shutdown resulting in blackout
or
Keep the intersection running normal in full phase for certain time or until
battery depletes down to certain capacity, both of which are
programmable. Run the intersection in flash mode after that, until the
battery depletes down completely resulting in blackout if utility does not
return. Connect Traffic controller's AUTO / FLASH circuit to any one of
the six programmable contacts on the MP2000E programmed for the
"Timer" or "Low Battery". This method is recommended to ride out small
power outages, which is what occurs during most utility interruptions.
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