
7
Publication 20P-IN050A-EN-P
Step 5: Install the New
Pulse Transformer Board
Install the new pulse transformer board in reverse order of removal as detailed in
Step 4: Remove the Existing Pulse Transformer Board
on page 5.
• Inspect the existing gate lead cables for burn marks, cracks or loose
connectors. Replace the cables if necessary with the new cables provided.
• Set DIP switches S3 and S4 on the pulse transformer board (see Figure 3 on
page 6 for location) to the correct settings based on the appropriate table
below.
Important:A blank cell below a switch in tables below indicate that the
setting is “OFF”.
Table 1 230V AC Input Drives
Table 2 460V AC Input Drives
Table 3 575V AC Input Drives
Table 4 690V AC Input Drives
Drive
Current
Rating
Code
DC
Amps
AC
Line
Amps HP
DIP Switch S3 DIP Switch S4
S3-1 S3-2 S3-3 S3-4 S3-5 S3-6 S3-7 S3-8 S4-1 S4-2 S4-3 S4-4 S4-5 S4-6 S4-7 S4-8
875 875 718 250 ON ON ON
1050 1050 861 300 ON ON ON ON
Drive
Current
Rating
Code
DC
Amps
AC
Line
Amps HP
DIP Switch S3 DIP Switch S4
S3-1 S3-2 S3-3 S3-4 S3-5 S3-6 S3-7 S3-8 S4-1 S4-2 S4-3 S4-4 S4-5 S4-6 S4-7 S4-8
830 830 681 500 ON ON ON
996 996 817 600 ON ON ON
1K1 1162 953 700 ON ON ON ON
1K3 1328 1089 800 ON ON ON ON
1K4 1494 1225 900 ON ON ON ON
Drive
Current
Rating
Code
DC
Amps
AC
Line
Amps HP
DIP Switch S3 DIP Switch S4
S3-1 S3-2 S3-3 S3-4 S3-5 S3-6 S3-7 S3-8 S4-1 S4-2 S4-3 S4-4 S4-5 S4-6 S4-7 S4-8
810 810 664 600 ON ON ON
1K0 1080 886 800 ON ON ON ON
1K2 1215 996 900 ON ON ON ON
1K3 1350 1107 1000 ON ON ON ON
1K4 1668 1384 1250 ON ON ON ON
Drive
Current
Rating
Code
DC
Amps
AC
Line
Amps HP
DIP Switch S3 DIP Switch S4
S3-1 S3-2 S3-3 S3-4 S3-5 S3-6 S3-7 S3-8 S4-1 S4-2 S4-3 S4-4 S4-5 S4-6 S4-7 S4-8
678 678 556 600 ON ON
791 791 649 700 ON ON ON
904 904 741 800 ON ON ON
1K0 1017 834 900 ON ON ON ON
1K1 1130 927 1000 ON ON ON ON
1K2 1243 1019 1100 ON ON ON ON
1K4 1413 1159 1250 ON ON ON ON
1K5 1582 1297 1400 ON ON ON ON
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