Shock Dyno
Version: 1.0.23241
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7.2.
RFI Jumper Removal
If a power system that powers the Dyno has an earth leakage circuit breaker (RCBO), with the
power on, it can break. In such cases, an RFI jumper must be removed from inside the Dyno.
The purpose of using the RFI jumper is to isolate the main power from the ground. If the AC motor
drive is supplied from an IT or TN power system, the RFI jumper must be removed. This
disconnects the RFI capacities (filter capacitors) from the ground to prevent circuit damage and
reduce current leakage to the ground.
RFI Jumper is located on the AC Motor Driver:
Figure 11
This guide applies to all models of LABA7 Shock Dyno; however, there are two possible
modifications of the AC Motor driver. This can result in a different RFI jumper, nonetheless the
location and steps to remove it are similar.
