Emerson MC68HC16Z1 user manual 1.5LED Indicators, LED indicators summary, Introduction

Introduction

1.5LED Indicators

The Liqui-tect panel’s controller board has LED indicators that show the status of inputs, outputs and other board components.

Power On/Off

LED

DS1

SW1

O N

SW2

O N

1

2

3

4

5

6

7

8

R4

1

2

3

4

5

6

7

8

A

24V Pow

K1

K2

R16

K4

R17

R18

K5

LCD Interlface

U24

C26

C27

C28

TB3

U15

R38

U16

Fault

DS6

R40

C32

C33

LEDO

DS7

DS8

Reset

U22

U23

R44

U24

C40

C46

U29

ON

TX

Alarm output LEDs (Zones 1&2)

DS2		TB2
K1
	R15

K2 R16

DS3

K3 R17

DS4

R18

K4 DS5

Status LEDs

R38

Fault	DS6		R40
LEDO			Reset
R44	DS7	DS8

RS485 LEDs SiteScan Web RS422 LEDs

R77	R78	R79
DS9	DS10	DS11	DS12	R80

RX TX RX TX

RS232 LEDs

	R81
DS13		R82
		DS14
	RX TX

Table 2	LED indicators summary
	LED	Color	Description
Power On/Off LED
Pwr On		Green	Indicates whether power is connected
Zone 1 & 2 Alarm Outputs LEDs
K1 – Zone 1 Leak Detected		Green	Indicates leak detected for Zone 1
K2 – Zone 1 Cable Break		Green	Indicates cable problem for Zone 1
K3 – Zone 2 Leak Detected		Green	Indicates leak detected for Zone 2
K4 – Zone 2 Cable Break		Green	Indicates cable problem for Zone 2
Status LEDs
LEDO		Green	Indicates the panel is working properly – will flash slowly when working
Fault		Red	Indicates an alarm is present
Reset		Red	Indicates the panel is being reset
RS232 LEDs
RS232 TX		Green	Liqui-tect panel is transmitting information via the RS232 port
RS232 RX		Green	Liqui-tect panel is receiving information via the RS232 port
RS422 LEDs
RS422 TX		Green	Liqui-tect panel is transmitting information over the RS422 port
RS422 RX		Green	Liqui-tect panel is receiving information over the RS422 port
RS485 LEDs
RS485 TX		Green	Not presently used
RS485 RS		Green	Not presently used

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