Rockwell Automation 20B PowerFlex 70, PowerFlex 700 Reference Manual - Manual (Page 119)

Motor Overload Protection
Rockwell Automation Publication PFLEX-RM001H-EN-P - June 2013 119
The ratio of 1:20 is the same for all durations of 150%. When operating
continuous at 100%, if the load increases to 150% for 1 second the load must
then return to 100% for 20 seconds before another step to 150%
Motor Overload
Protection
FLA%
Cold Trip
Time Hot Trip
Time
FLA%
Cold Trip
Time Hot Trip
Time
FLA%
Cold Trip
Time Hot Trip
Time
105 6320 5995 155 160 50 205 66 14
110 1794 1500 160 142 42 210 62 12
115 934 667 165 128 36 215 58 11
120 619 375 170 115 31 220 54 10
125 456 240 175 105 27 225 51 10
130 357 167 180 96 23 230 48 9
135 291 122 185 88 21 235 46 8
140 244 94 190 82 19 240 44 8
145 209 74 195 76 17 245 41 7
150 180 60 200 70 15 250 39 7
20 Minutes
1 Minute 1 Minute
100%
150%
PowerFlex 70 PowerFlex 70: Class 10 motor overload protection according to NEC article 430
and motor over-temperature protection according to NEC article
430.126 (A)(2). UL 508C File E59272.
PowerFlex 700 Frames 0…6 Standard Control:
Frames 0…6 Vector Control:
Frames 7…10 Vector Control:
PowerFlex 700 drives with standard control, identified by an N,
A, or B in position 15 of the catalog number, only provide Class
10 motor overload protection according to NEC article 430. They
do not provide speed sensitive overload protection, thermal
memory retention and motor over-temperature sensing
according to NEC article 430.126 (A) (2). If such protection is
needed in the end-use product, it must be provided by
additional means.
PowerFlex 700 drives with vector control, identified by a C or D in
position 15 of the catalog number, provide class 10 motor
overload protection according to NEC article 430 and motor
over-temperature protection according to NEC article 430.126
(A) (2). UL 508C File E59272.
Class 10 motor overload protection according to NEC article 430
and motor over-temperature protection according to NEC article
430.126 (A)(2). UL 508C File E59272.