Connecting the MPS-400 Power Cables
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AFP-300/AFP-400 Installation PN 50253:C1 05/22/97 2-13
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MPS-400 electrical connections include the following:
• Primary AC power source – 120 VAC, 50/60 Hz, 3.0 A or 240 VAC, 50/60 Hz,
1.5 A from line voltage source.
• Secondary power source – 24 VDC from batteries, installed in the control panel (or
in an optional battery cabinet), provides backup power if the system loses primary
power. Secondary (battery) power is required to support the system during loss of
primary power.
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Connect primary power to the MPS-400 as follows:
Table 2-5 Connecting AC (Primary) Power
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Install batteries in the control panel cabinet or in a separate battery cabinet which can be
mounted up to 20 feet away from the control panel.
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Connect the battery as follows:
Table 2-6 Connecting Batteries
Step Action
1 Set the Voltage Select Switch (S9 on the MPS-400) to match the incoming AC line
voltage (120 VAC or 230 VAC).
2 Turn off the breaker at the main power distribution panel and remove the plastic
insulating cover from TB1.
3 Connect the system primary power source.
4 Connect the service ground to TB1-3 (labeled EARTH).
5 Connect the primary Neutral line to TB1-2 and the primary Hot line to TB1-4
(marked HOT).
6 When finished making connections, reinstall the plastic insulating cover over TB1
(Switch S9 on the MPS-400).
Step Action
1 Connect the battery positive terminal to TB1 terminal 6 (+).
2 Connect the battery negative terminal to TB1 terminal 7 (–).
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