Emerson Net Safety MLP-A-SC1100, Руководство пользователя

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Operations Manual
January 2017 FGD-MAN-0047
8
4.3 Board assembly
There are three different user-allowed removable boards: relay board
(solid state or electromechanical), option board, and Modbus board.
These boards are field replaceable. Simply loosen the locking standoffs,
remove one board, insert the other board, and tighten screws.
Depending upon requirements, either an electromechanical or solid
state relay board module can be used.
4.4 Sensor and controller
Power to the unit must be OFF before wiring.
Also ensure area is de-classified before removing housing cover.
Note: The sensor may be factory installed to the controller. If so, you
need only connect the power terminals.

Remove the controller’s housing cover.

Connect the sensor to the sensor terminals (if necessary) and the
power terminals to power and output signal wires.

Turn controller on (put On/Off Switch in On position).

Replace controller’s housing cover. Apply power to unit.

Ensure display reads Start Delay, status LED is red slow flash, and
current output displays 3.0 mA. This is the start-up delay
sequence which will last approximately 90 seconds.
Refer to Table 4-1 and Table 4-2 along with Figure 4-3 for wiring.
Table 4-1 Sensor terminal connection
Sensor
wire
Terminal
designation
White
↔
Wht(+)
Red
↔
Red
Black
Blank space
↔
Blk(-)
Shld
Note the terminal designations on sensor terminal board,
i.e., Wht (+), Red, Blank space (no connection), Blk (-), and Shld.
Figure 4-2 Millennium module boards