Time Dial Setting Cross-Reference - Allen-Bradley 1407-CGCM-DLR User Manual

Table 36 - Characteristic Curve Cross-reference
Curve Curve Name
1 S, Short Inverse
2 S2, Short Inverse
3 L, L1, Long Inverse
4 L2, Long Inverse
5 D, Definite Time
6 M, Moderately Inverse
7 I, I1 Inverse Time
8 I2 Inverse Time
9 V, V1 Very Inverse
10 V2, Very Inverse
11 E, E1 Extremely Inverse
12 E2, Extremely Inverse
13 A Standard Inverse
14 B, Very Inverse (It)
15
Extremely Inverse (I
16 Long Time Inverse
17 Fixed Time

Time Dial Setting Cross-reference

Although the time characteristic curve shapes have been optimized for each relay,
time dial settings of the CGCM-DLR unit are not identical to the settings of
electromechanical induction disk over-current relays.
The Characteristic Curve Cross-reference
the time dial settings of induction disk relays to the equivalent setting for the
CGCM-DLR unit.
Using Table
Inspection of published electromechanical time current characteristic curves
provide the cross-reference table values. The time delay for a current of five times
tap was entered into the time dial calculator function for each time dial setting.
The equivalent CGCM-DLR unit time dial setting was then entered into the
cross-reference table.
If your electromechanical relay time dial setting is between the values that are
provided in the table, it is necessary to interpolate (estimate the correct
intermediate value) between the electromechanical setting and the default
configuration.
Rockwell Automation Publication 1407-UM002B-EN-P - February 2019
Time Over-current Characteristic Curves
Page Similar To
181 ABB CO-2
182 GE IAC-55
183 ABB CO-5
184 GE IAC-66
185 ABB CO-6
186 ABB CO-7
187 ABB CO-8
188 GE IAC-51
189 ABB CO-9
190 GE IAC-53
191 ABB CO-11
192 GE IAC-77
193 BS, IEC Standard Inverse
194
BS, IEC Very Inverse (I
2 195
t) BS, IEC Extremely Inverse (I
196 BS, IEC Long Time Inverse
N/A N/A
table on page 180
Appendix A
2
t)
2
t)
helps you convert
179