FCI FLT93B, Инструкция по установке, эксплуатации и обслуживанию

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FLT
®
Series FlexSwitch
TM
INSTALLATION
Fluid Components International LLC 13
Wiring Output Signal Terminals
The primary outputs on the FLT are the relays. Voltage ouputs relative to flow/level and temperature are provided on the terminal board at TB3.
The signal voltage at positions 1 and 2 represents the process change (non-linear to flow). The signal voltage at positions 3 and 4 is propor-
tional to the temperature at the sensing element. See Figures 2-8 and 2-9. See also Section 3 for the physical layout of the control circuit.
Caution: Do not ground terminal 2 of TB3. (Terminal 2 is the negative lead of the process signal.) This terminal is 9 volts above the
control circuit ground. The peripheral using this signal must have a differential input.
These voltages can be used by other peripherals with a minimum load of 100K ohms. The terminal block can be wired with between gauge 24 and 20
wire. The maximum recommended length of wire is 100 feet. Shielding is required on any length of cable. Terminate the shield to earth ground.
To easily monitor output voltages locally while the instrument is powered, the control circuit has test points available at P1. These test points can
be probed with pointed test leads or hooked on to with test clips (Pomona Mini Grabbers or Easy Hooks). See Figure 3-2 (Operation).
Wiring Input Power
The “Normal AC Line Input Voltages” and the “24 VDC/VAC” are the standard configurations provided and are selectable in the field. Refer to
Table 2-2. An option for “Low AC Line Input Voltages” is available.
120 or 230 VAC Input: When wiring the terminal board for 120 or 230 VAC, refer to Table 2-2, Figure 2-10, 2-11 and Figure 2-12. Note the
required power jumper and the position of the power input wires. The wire gauge range for TB1 is 24 to 12 AWG. Make sure all wires going
into one position are properly attached by tugging on each wire individually. Once the terminal board is wired, the control circuit can be con-
nected to the terminal board and secured with the thumbscrews. The control circuit does not need to be configured for power input.
24 VDC/VAC: When wiring the terminal board for 24 VDC/VAC refer to Table 2-2 and Figure 2-13. TB4 is a compression screw terminal block
that has a wire range of 30 to 12 AWG. Make sure that all wires going into one position are properly attached by tugging each wire individu-
ally. When using 24 VDC the polarity does not need to be considered. DC can be connected in either polarity.
5208 – A X X
STANDARD AC LINE
INPUT VOLTAGES
5208 – (A or B) X X
24 VDC/VAC
5208 – B X X
LOW AC LINE
INPUT VOLTAGES
Power Jumper RED BLUE NA RED BLUE
Main Feed 108 - 132 VAC 207 - 253 VAC 21 - 30 VDC
18 - 28 VAC
90 - 110 VAC 180 - 220 VAC
LINE 1 TB1C-1 TB1C - 1 NA TB1C-1 TB1C - 1
NEUT / LINE 2 TB1C-2 TB1C-2 TB1C-2 TB1C-2
- 24 VDC/VAC NA NA TB4- 24 DC/AC NA NA
+ 24 VDC/VAC NA NA TB4+ 24 DC/AC NA NA
Table 2-2 Input Power Wiring Configurations