MYERS MP Series, Инструкция по установке, эксплуатации и обслуживанию

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9
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9. Green Control Terminal Block
This 22 position terminal block provides communication with the intersection
controller, controls the Power Transfer Switch (PTS) and starts the self-test. Figure 17
shows its layout and operation.
Note: This terminal block is opto-isolated and shares a common ground with the
serial interface. Each of the six programmable contacts can be programmed for
one or more functions such as: The Timer, Low Battery and On Batt. The relay
contacts are Form C type, i.e. Each of the six programmable contacts has Common
(C); Normally Closed (NC) and Normally Open (NO) contact position.
• On Batt: This relay energizes when Utility Input line power is unqualified.
• Low Battery: These relays energize when the battery drops below the programmed
battery capacity. The default value is 47.5VDC or 40% battery capacity.
• TIP: You can change the preprogrammed value to match the batteries used and the
actual operating condi
tions. See Section 2.3.4.4, “Maintenance” # 35, “Battery
Voltage Level @40% of Capacity”.
• Timer: These relays energize after the unit has been in Battery mode for the
programmed time period. The factory default value is 2 hours.
• TIP: The time can be programmed to be from 15 min. to 8 hours in 15 minute
increments
• Self-Test: To initiate self test, jumper the TB 19 & 20 on the Green Control Terminal
Block.
• Program Input: To enable external input to jumper TB 19 & 20.
• PTS: MP2000E sends a 48VDC signal from the batteries to the PTS, which activates
the PTS, resulting in transfer from Input power to BBS power. See Section 1.3,
Wiring, of this manual for connection instructions.
Figure 16
MP2000E Front Panel