Rockwell Automation 592- E300 Overload Relay User Manual - Manual (Page 124)

124 Rockwell Automation Publication 193-UM015B-EN-P - June 2014
Chapter 5 Protective Trip and Warning Functions
L3 Over Current Trip Delay
L3 Over Current Trip Delay (Parameter 282) allows the installer to define the
time period a L3 Over Current condition must be present before a trip occurs. It
is adjustable from 0.1…25.0 seconds.
Table 110 - L3 Over Current Trip Delay (Parameter 282)
L3 Over Current Trip Level
L3 Over Current Trip Level (Parameter 283) allows the installer to define the
current at which the E300 Electronic Overload Relay will trip on a L3 Over
Current. It is user-adjustable from 10…100% of the FLA Setting (Parameter
171).
Table 111 - L3 Over Current Trip Level (Parameter 283)
L3 Over Current Warning
The E300 Electronic Overload Relay will indicate an L3 Over Current warning
if:
• No warning currently exists
• L3 Over Current Warning is enabled
• Current is present
• The Over Current Inhibit Timer has expired
Default Value 1.0
Minimum Value 0.1
Maximum Value 25.0
Parameter Type USINT
Size (Bytes) 1
Scaling Factor 10
Units Sec
Default Value 100
Minimum Value 10
Maximum Value 100
Parameter Type USINT
Size (Bytes) 1
Scaling Factor 1
Units %FLA
IMPORTANT The Over Current Inhibit Timer starts after the maximum phase of load current
transitions from 0A to 30% of the device’s minimum FLA setting. The E300
Electronic Overload Relay does not begin monitoring for an over current
condition until the Over Current Inhibit Time expires.