Rockwell Automation 440R-D22R2

Rockwell Automation Publication 440R-UM013F-EN-P - July 2021 75
Chapter 11 Troubleshooting
Figure 87 - The B1-B2 Waveform When the EMD Safety Relay Output is ON
Terminal Block Removal
and Replacement
Terminal blocks can be replaced following these instructions.
Terminal Block Removal
GSR safety relays have removable terminal blocks. Use a screwdriver as a lever
to remove the blocks. As shown in Figure 88, insert the screwdriver into the
slot and pry up.
Figure 88 - Terminal Block Removal
Terminal Block Replacement
The terminal blocks are keyed to help prevent a block from being inserted into
an incorrect location. The orange-colored insert provides the orientation of the
key (see Figure 89 on page 76
).
1. Insert
2. Pry Up