Nidec H300 - Binary Outputs; Binary Output Point Attributes; Binary Output Configuration Byte; Binary Output Status Byte

To Next Page

To Previous Page

Safety

information

Product

information

Mechanical

installation

Electrical

installation

Getting

started

Basic

parameters

Running the

motor

Optimization

NV Media Card

Operation

Building

Automation

Advanced

parameters

Technical

data

Diagnostics

UL listing

information

190 HVAC Drive H300

Issue Number: 3

Current Value

The current value is returned as a 32-bit (4 byte) IEEE floating point number. This attribute can be read and also "overridden". Overriding the Analog

Output Value attribute will freeze its value to the specified setting until an "override release" is issued for that point. Analog Inputs are all read-write so

that an "override" command WILL change the value in the drive itself.

10.5.5 Binary Outputs

Binary Output points are drive bit parameters (byte) that are a combination of read-write and read-only. A Binary Output cannot be written to; rather it

can be "overridden" if desired. Note that Binary Outputs, those being read-only, cannot be updated on the drive. In this case, overriding a binary input

will only change what the Metasys network sees as the value of that point. The first three points, however, are Read-Write and can be updated on the

drive by the "override" command.

Binary outputs are allocated point numbers in the numerical order in which they are defined on their respective option module.

Table 10-38 Binary Output points

Each binary input point has two attributes that can be read and updated.

Table 10-39 Binary output point attributes

Object Configuration

The Binary Output Object Configuration byte has the following format:

Table 10-40 Binary output configuration byte

It is possible to read and write to the Object Configuration byte.

Setting the "COS Enable" bit will enter this point into the set of points to be scanned for change whenever a "Poll without Acknowledge" command is

received.

Object Status

The Binary Output Object Status byte has the following format:

Table 10-41 Binary output status byte

The "Reliable/Unreliable" bit will be set if:

• the digital output source is not valid

• and/or the source is not 1 bit parameter

• the terminal is not selected as output

The "Override Active" bit will be set if a Binary Output point is overridden. This indicates that the current state being read is an "override" and does not

reflect the value existing in the drive. This action would normally be done during testing of the Metasys building automation network. The only way to

clear the "override active" bit is to issue an "Override Release Request" command for this point.

Point Parameter Description Access

0Pr 6.030 Sequencing Bit – Run Forward RW

1Pr 10.033 Drive Reset W

2Pr 6.024 Reset energy meter RW

3Pr 8.001 Digital Output 1 on drive (bi-directional) RO

4Pr 8.002 Digital Output 2 on drive (bi-directional) RO

5Pr 8.003 Digital Output 3 on drive (bi-directional) RO

6Pr 8.008 24 Volt Output State RO

7Pr 8.007 Relay 1 State Indicator RO

8Pr 8.045 Relay 2 State Indicator RO

Attribute Name Format Commands Notes