MP SERIES™ Battery Backup System for Traffic Signals: MP2000E System
Volume One: Operating Manual
Page 4-3
battery temperature sensor probe IAW the external fan control setting in the MP2000 LCD
settings menu.
4.b Wiring
D
ANGER
: 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.
Prior to
wiring the system, follow the instructions in Figure 4-1 to determine the size of the load.
Figure 4-1: Determine the Size of the Load
NOTE: 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
240VAC. 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 elsewhere in this manual. 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 as the
discharged battery reaches the lower value battery capacity as set by user as
long as the system remains in Battery mode. The TIMER contact(s) are activated
