Sea-Fire 131-740, Руководство по установке

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Page 4 of 11 123-652 Rev -
3.3.1 ELECTRICAL INPUT/OUTPUT CONNECTIONS
1
2
3
4
VIN1 +
VIN1 -
VIN2 +
VIN2 -
VIN3 +
VIN3 -
DISPLAY
PANEL
Figure 2: Input/output Terminal Block
3.3.1.1 MSRS Pressure Switch (PS1) Terminals 1 and 2 connection

Install one of the wires from the Cylinder Low-Pressure Switch or from the Discharge Pressure Switch to
the terminals marked “1” and the other wire to the terminal marked “2”. See Figure 2.
3.3.1.2 MSRS Pressure Switch (PS2) Terminals 3 and 4 connection

The MSRS unit has a wire jumper installed across PS2 terminals from the factory. If the MSRS PS2
terminals are being used, remove the wire jumper. Leave the wire jumper in-place if the PS2 terminals are
not being used.

Install one of the wires from the High Temp Sensor or the Cylinder Low-Pressure Supervisory Switch to the
terminal marked “3” and the other wire to the terminal marked “4”. See Figure 2.
o
Low-Pressure Switch/Auxiliary Cylinder Supervisory Switch - When the pressure in the cylinder drops
to an unserviceable (low) pressure, the switch shall open activating the early warning alarm.
o
Temperature Sensor – When the temperature in the protected zone goes above the fixed temperature
of the sensor, the sensor shall open activating the early warning alarm.
3.3.1.3 Power Supply Terminals – Main Supply, Backup Supply, and Generator

The MSRS Unit has 3 diode-protected inputs but only one power source is needed to operate the MSRS
and should be connected to V IN1+ and V IN1-. See Figure 2.
o
If available, a backup power source should be connected to one of the additional power source inputs.

Connect the MSRS unit to the power source(s) using a 5A circuit breaker with an ON/OFF switch. Use the
breaker switch to turn the MSRS Unit OFF when all the machinery is OFF and to turn the MSRS Unit ON if
any machinery is ON.
3.3.1.4 RJ45 Port

The RJ45 socket connects the Display Panel to the MSRS unit via a supplied CAT-5 cable. Install one end of
the CAT-5 cable into the MSRS unit RJ45 socket and the other end into one of the Display Panel RJ45
socket.
o
Connect Multiple Display Panels to the MSRS unit by using the available RJ45 socket on the back of the
Display Panel.
Check the Display Panel Installation Manual on how to correctly connect and use the Display Panel.