Introduction

Table 1

Controller board components

 

 

 

 

 

 

 

Item

 

Description

 

More Information

 

 

 

 

 

H-Status LEDs

 

Indicates the operational status of the panel.

1.5:

LED Indicators

 

 

Provides the distance liquid is detected, normal

3.0:

Connections and Configuration

 

 

3.3:

Connecting to a Building Maintenance

I-4/20mA output

 

status and cable fault. Used to provide status to a

 

 

System or External Alarm System

(Zone 2)

 

building management system or remote monitoring

 

 

5.1:

View Cable Status

 

 

system.

 

 

6.5: Setup System - Setup Alarm Outputs

 

 

 

 

 

 

 

 

 

 

Provides the distance liquid is detected, normal

3.0:

Connections and Configuration

 

 

3.3:

Connecting to a Building Maintenance

J-4/20mA output

 

status and cable fault. Used to provide status to a

 

 

System or External Alarm System

(Zone 1)

 

building management system or remote monitoring

 

 

5.1:

View Cable Status

 

 

system.

 

 

6.5: Setup System - Setup Alarm Outputs

 

 

 

 

 

 

 

 

 

 

 

3.0:

Connections and Configuration

K-Input cable

 

 

3.1:

Connecting Leak Detection Cable

 

Connection to Liebert leak detection cable.

 

Inputs

connector (Zone 2)

 

 

 

 

5.1:

View Cable Status

 

 

 

 

 

 

6.4:

Setup System - Setup ZN2 Zone 2

 

 

 

 

 

 

 

 

3.0:

Connections and Configuration

L-Input cable

 

 

3.1:

Connecting Leak Detection Cable

 

Connection to Liebert leak detection cable.

 

Inputs

connector (Zone 1)

 

 

 

 

5.1:

View Cable Status

 

 

 

 

 

 

6.3:

Setup System - Setup ZN1 Zone 1

 

 

 

 

 

M-RS232 LEDs

 

Indicates the connection status between the

1.5:

LED Indicators

 

Liqui-tect panel and an RS232 device.

 

 

 

 

 

 

Connection for a laptop. Used by factory personnel.

 

 

N-RS232 connector

Requires a null modem cable for connectivity

N/A

 

 

 

(P/N 201258P1).

 

 

O-SiteScan Web

 

Connection to monitor Liqui-tect panel from Liebert’s

3.0:

Connections and Configuration

connector

 

SiteScan Web enterprise monitoring system.

3.4:

RS422 SiteScan Web Connector

P-SiteScan Web

 

Indicates the connection status between the

1.5:

LED Indicators

LEDs

 

Liqui-tect panel and SiteScan Web.

 

 

 

Q-RS485 LEDs

 

Not presently used.

N/A

 

R-RS485 connector

Not presently used.

N/A

 

S-Power receptacle

115VAC power receptacle to power laptop during

2.4.2: Input and Output Power Connections -

configuration and diagnostics. Receptacle not

 

Large Enclosure

(Transformer Module)

 

available on 230VAC Transformer Module.

3.0:

Connections and Configuration

 

 

T-Power On/Off

 

Power switch to turn power On/Off to both

2.4.2: Input and Output Power Connections -

switch (Transformer

 

Transformer Module 24VAC connectors and power

 

Large Enclosure

Module)

 

receptacle.

3.0:

Connections and Configuration

 

 

One of the two 24VAC connectors for power (the

2.4.2: Input and Output Power Connections -

U-24VAC connector

second is also on the right side of the Transformer

 

Large Enclosure

(Transformer Module)

Module near the top). Each connector is rated for

 

3.0:

Connections and Configuration

 

 

40VA.

 

 

 

 

 

 

 

 

 

V-LCD connector

 

Connection for the LCD located on the front door.

N/A

 

W-LCD contrast

 

Adjustment contrast for the LCD located on the front

N/A

 

adjustment

 

door.

 

 

 

 

X-Reset switch

 

Reset switch to reset the panel. Same as re-

N/A

 

 

powering the panel.

 

 

 

 

 

Y-24VAC power

 

Power connection for the controller. Requires

2.4:

Connect Power to the Liqui-tect Panel

connector

 

24VAC.

 

 

 

Z-Transformer

 

Transformer Module used to convert 115VAC or

2.4.2: Input and Output Power Connections -

 

230VAC to 24VAC. Available only in the large

Module

 

 

Large Enclosure

 

enclosure.

 

 

 

 

 

5

Page 9
Image 9
Emerson MC68HC16Z1 Description More Information Status LEDs, RS232 LEDs, RS232 connector, SiteScan Web, RS485 LEDs

MC68HC16Z1 specifications

The Emerson MC68HC16Z1 is a versatile microcontroller that combines power and efficiency, making it an ideal choice for various embedded applications. As part of the Motorola 68HC16 series, the MC68HC16Z1 is designed to deliver robust performance while offering extensive support for both simple and complex tasks. With its 16-bit architecture, this microcontroller is well-equipped to handle a range of functionalities, from industrial control systems to automation processes.

One of the main features of the MC68HC16Z1 is its high-performance 16-bit CPU, which operates at speeds up to 20 MHz. This allows for efficient data processing and execution of instructions, which is critical in time-sensitive applications. The microcontroller boasts a rich instruction set, including various addressing modes that enhance programming flexibility. This versatility enables developers to implement efficient algorithms tailored to their specific application needs.

Power management is another noteworthy characteristic of the MC68HC16Z1. The device supports low-power operation modes, which is essential for battery-powered applications or scenarios where energy consumption is a concern. With its capability to switch between different operational states, the microcontroller can significantly extend battery life while ensuring that performance is not compromised.

The MC68HC16Z1 also includes an integrated analog-to-digital converter (ADC) that allows for direct interaction with analog signals. This feature is particularly beneficial in applications that require sensor data acquisition. Additionally, the microcontroller provides various communication interfaces, including serial communication options like UART and SPI, facilitating seamless data transfer between devices.

In terms of memory, the MC68HC16Z1 supports a wide range of options, including both RAM and ROM, allowing for flexible storage solutions depending on the application requirements. The built-in programmability further allows for updates and modifications to the firmware, ensuring that the system can adapt to evolving project specifications.

Moreover, the microcontroller features an extensive array of I/O ports, making it capable of interfacing with various peripheral devices such as sensors, actuators, and displays. This extensive connectivity enhances its usability in a range of applications, from robotics to automotive systems.

In summary, the Emerson MC68HC16Z1 microcontroller stands out for its balanced blend of performance, low power consumption, and feature-rich design. Its 16-bit architecture, integrated ADC, versatile communication interfaces, and extensive memory options make it a go-to choice for developers looking to create effective and reliable embedded systems. Whether for industrial automation or consumer electronics, the MC68HC16Z1 continues to be a dependable and powerful component in the realm of microcontroller technology.