Overload Object
Description
The Overload Object models all the functions specific to an AC motor overload protection device.
Class Code
The Overload Object class code is 0x2C as defined by CIP.
Class Attributes
|
Attribute ID |
Name |
Access |
Description |
|---|---|---|---|
|
0x01 |
Revision |
R |
The Overload Object implementation revision. Returns 0x01. |
|
0x02 |
Maximum Instance |
R |
Returns 0x01 to represent a single instance. |
|
0x03 |
Number of Instances |
R |
Returns 0x01 to represent a single instance. |
|
0x06 |
Maximum Class Attribute |
R |
The largest class attribute value. Returns 0x07. |
|
0x07 |
Maximum Instance Attribute |
R |
The largest instance attribute value. Returns 0xB2. |
Class Service
|
Service Code |
Name |
Description |
|---|---|---|
|
0x0E |
Get Attribute Single |
Returns the value of the specified attribute. |
Instance Codes
Only one instance is implemented: Instance 1.
Instance Attributes
|
Attribute ID |
Name |
Access |
Description |
|---|---|---|---|
|
0x01 |
Attribute count |
R |
Returns the supported attribute count (46). |
|
0x04 |
TripClass |
R |
Trip Class Setting (5, 10, 15, 20, 25, 30) |
|
0x05 |
AvgCurrent |
R |
0.1 A |
|
0x06 |
%PhImbal |
R |
% Phase imbalance |
|
0x07 |
%Thermal |
R |
% Thermal capacity |
|
0x08 |
IL1 Current |
R |
0.1 A |
|
0x09 |
IL2 Current |
R |
0.1 A |
|
0x0A |
IL3 Current |
R |
0.1 A |
|
0x0B |
Ground Current |
R |
0.1 A |
|
0x65 |
IL1 Current |
R |
0.1 A |
|
0x66 |
IL2 Current |
R |
0.1 A |
|
0x67 |
IL3 Current |
R |
0.1 A |
|
0x68 |
Ground Current |
R |
0.1 A |
|
0x69 |
IL1 Current Ratio |
R |
% of FLC |
|
0x6A |
IL2 Current Ratio |
R |
% of FLC |
|
0x6B |
IL3 Current Ratio |
R |
% of FLC |
|
0x6C |
IAV Average Current Ratio |
R |
% of FLC |
|
0x6D |
Thermal Capacity Level |
R |
% TripLevel |
|
0x6E |
Ground Current |
R |
0.1 A |
|
0x6F |
Current phase imbalance |
R |
% Imbalance |
|
0x70 |
Time to trip |
R |
Seconds |
|
0x71 |
Time to Reset |
R |
Seconds |
|
0x7F |
Single/Three Ph |
RW |
0 = Single phase 1 = Three phases |
|
0x80 |
TripFLCSet |
RW |
% of FLA max |
|
0x81 |
Trip Class |
RW |
Seconds |
|
0x84 |
Thermal Alarm Level |
RW |
% Trip Level |
|
0x86 |
PL Trip Delay |
RW |
0.1 seconds |
|
0x88 |
Ground Current Trip Delay |
RW |
0.1...25.0 seconds |
|
0x89 |
Ground Current Trip Level |
RW |
20...500% FLC |
|
0x8A |
Ground Current Alarm Level |
RW |
20...500% FLC |
|
0x8C |
Stall Trip Level |
RW |
100...800 % FLC |
|
0x8E |
Jam Trip Delay |
RW |
1...30 seconds |
|
0x8F |
Jam Trip Level |
RW |
100...800 % FLC |
|
0x90 |
Jam Alarm Level |
RW |
100...800 % FLC |
|
0x92 |
UL Trip Delay |
RW |
1...200 seconds |
|
0x93 |
UL Trip Level |
RW |
30...100 % FLC |
|
0x94 |
UL Alarm Level |
RW |
30...100 % FLC |
|
0x96 |
CI Trip Delay |
RW |
0.1 seconds |
|
0x97 |
CI Trip Level |
RW |
0...70 % Imbalance |
|
0x98 |
CI Alarm Level |
RW |
0...70 % Imbalance |
|
0xB2 |
CT Ratio |
RW |
– |
-
PL = Current phase loss
-
Stall = Long start
-
UL = Underload
-
CI = Current phase imbalance
Instance Service
|
Service Code |
Name |
Description |
|---|---|---|
|
0x0E |
Get Attribute Single |
Returns the value of the specified instance attribute. |
|
0x10 |
Set Attribute Single |
Sets the value of the specified instance attribute. |