Emerson MC68HC16Z1 1.4Controller Board Overview, Controller board components, Introduction

Introduction

1.4Controller Board Overview

The Liqui-tect panel’s controller board, as shown below, has connectors for two digital outputs for leak detection alarms, two digital outputs for cable break alarms, two inputs for leak detection cables and two analog outputs for connecting to a building management system. The board comes complete with light-emitting diodes (LEDs) to display the status of monitored zones, power connections and other features necessary to monitor and protect your operation.

	A-Power On/Off	B-DIP	C-DIP	D-Audible
Z-Transformer	LED	switch 1	switch 2	horn
Module

E-Digital alarm

Y-24VAC power

outputs (Zone 1)

connector

DS1

SW1

O N

R4

SW2

O N

R1

F-Alarm output

Pwr On

1

2

3

4

5 6

7

8

1

2

3

4

5

6

7

8

X-Reset

A

LEDs (Zones 1&2)

switch

24V Pow

W-LCD contrast

K1

G-Digital alarm

adjustment

K5

outputs (Zone 2)

K2

R16

K4

R17

V-LCD

Interlface

U24

H-Status LEDs

U15

R38

U16

C28

TB3

connector

LCD

C26

LEDOFault

C27

I-4/20mA output

C32

C33

DS6

Reset

R40

(Zone 2)

U22

U23

R44

DS7

DS8

U24

C40

C46

U29

U-24VAC

J-4/20mA output

(Zone 1)

connector

T-Power On/

ON

K-Input cable

TX RX

connector (Zone 2)

Off switch

				L-Input cable
S-Power				connector (Zone 1)
receptacle R-RS485	Q-RS485		N-RS232	M-RS232
connector		P-SiteScan	connector
(not used)	LEDs		O-SiteScan	LEDs
		Web LEDs

Web connector

Table 1	Controller board components
Item		Description		More Information
A-Power On/Off LED		Indicates when power is supplied to the panel.	2.4: Connect Power to the Liqui-tect Panel
			1.5:	LED Indicators
B-DIP switch 1		DIP switch used for resetting password to default	3.5:	Disable the Audible Horn
		and disabling the audible alarm.	6.8.1: Change Password
C-DIP switch 2		Not used.	N/A
D-Audible horn		Provides audible notification when an alarm occurs.	3.5:	Disable the Audible Horn
		The Cable Break output connection is a two-state
		point (ON/OFF, energized/de-energized). When the
		cable is broken or becomes contaminated, an alarm
E-Digital alarm		is created and the contact is energized.	3.0:	Connections and Configuration
outputs (Zone 1)		The Leak Detected output connection is a two-state
			3.2:	Connecting Alarm Outputs
and		point (ON/OFF, energized/de-energized). When
			5.1:	View Cable Status
G-Digital alarm		water is detected, an alarm is created and the
			6.5: Setup System - Setup Alarm Outputs
outputs (Zone 2)		contact is energized.
		Each output can be used to connect to a secondary
		warning device such as a horn, light or building
		management system.
F-Alarm output		Indicates the status of the alarm outputs.	1.5:	LED Indicators
LEDs (Zones 1&2)
G-Digital alarm		(See description and references for E-Digital alarm outputs (Zone 1) above)
outputs (Zone 2)

4