Flowline LC90 Remote Controller - Manual (Page 4)

Step Four Step Five
GUIDE TO CONTROLS INSTALLATION
1. Power indicator: This green LED lights when AC power is ON.
2. Relay indicator: This red LED will light whenever the con-
troller energizes the relay, in response to the proper condition at
the sensor input(s) and after the time delay.
3. AC Power terminals: Connection of 120 VAC power to the
controller. The setting may be changed to 240 VAC if desired.
This requires changing internal jumpers; this is covered in the
Installation section of the manual. Polarity (neutral and hot) does
not matter.
4. Relay terminals (NC, C, NO): Connect the device you wish to
control (pump, alarm etc.) to these terminals: supply to the COM
terminal, and the device to the NO or NC terminal as required.
The switched device should be a noninductive load of not more
than 10 amps; for reactive loads the current must be derated or
protection circuits used. When the red LED is ON and the relay is
in the energized state, the NO terminal will be closed and the NC
terminal will be open.
5. Time delay: Use potentiometer to set delay from 0.15 to 60 sec-
onds. Delay occurs during switch make and switch break .
6. Input indicators: Use these LEDs for indicating Wet or Dry sta-
tus of switch. When switch is Wet, LED will be Amber. When
switch is dry, LED will either be Green for powered switches or
Off for reed switches. Note: Reed switches may be reversed for
Wet/Off, Dry/Amber indication.
7. Invert switch: This switch reverses the logic of the relay control
in response to the switch(es): conditions that used to energize the
relay will now de-energize the relay and vice versa.
8. Latch switch (LC91 and LC92): This switch determines how
the relay will be energized in response to the two sensor inputs.
When LATCH is OFF, the relay responds to sensor Input A only;
when LATCH is ON, the relay will energize or de-energize only
when both switches (A and B) are in the same condition (both wet
or both dry). The relay will remain latched until both switches
change conditions.
9. Input terminals: Connect the switch wires to these terminals:
Note the polarity: (+) is a 13.5 VDC, 27 mA power supply (con-
nected to the red wire of a FLOWLINE level switch), and (-) is
the return path from the sensor (connected to the black wire of a
FLOWLINE level switch). If polarity is reversed, the sensors will
not work.
Panel DIN Rail Mounting
The controller may be mounted by either a back panel using two
screws through mounting holes located at the corners of the controller
or by snapping the controller on 35 mm DIN Rail.
Note: Always install the controller in a location where it does not
come into contact with liquid.
Connecting switches to input terminals:
All FLOWLINE intrinsically safe level switches (models LO10, LP10,
LP50 and LU10) will be wired with the Red wire to the (+) terminal and
the Black wire to the (-) terminal.
LED Indication
Use LED's located above the input terminals to indicate whether the
switch is in a wet or dry state. With FLOWLINE intrinsically safe
level switches, Green indicates dry and Amber indicates wet.
STANDARD
CONTROLLER
R E L A Y 1 R E L A Y 2
P O W E R
I N P U T 1 I N P U T 2 A I N P U T 2 B
- + - +
I N V E R T D E L A Y I N V E R T D E L A Y
LATCH
ON OFF
1
3
7 2
5
4 4
7 2
5
6
8
6 6
9 9 9
3.475"
2.2"
.275"
.225"
STANDARD
CONTROLLER R E L A Y 1 R E L A Y 2
P O W E R
I N P U T 1 I N P U T 2 A I N P U T 2 B
- + - +
I N V E R T D E L A Y I N V E R T D E L A Y
LATCH
ON OFF
Black
Red
Non-Hazardous Area Hazardous Area
Green
Hazardous Area
Non-Hazardous Area
I N P U T 1
Amber
Hazardous Area
Non-Hazardous Area
I N P U T 1
INPUT
13.5 VDC
30 mA MAX
(-) (+)
3
5
m
m
Voc = 17.47 VDC
Isc = 0.4597 A
Ca = 0.494 µF
La = 0.119 mH
Vmax = 32 VDC
Imax = 0.5 A
Ci = 0 µF
Li = 0 mH