Figure 1 shows the open/close sequence of the holding brake. Figure 1. Holding Brake Open and Close Sequence Time Chart (V/f, CL-V/f, OLV) 1 Figure 2. Holding Brake Open and Close Sequence Time Chart (CLV, CLV/PM) 1 1 Start braking from the higher set frequency between b2-01 [DC Injection/Zero SpeedThreshold] or E1-09 [Minimum Output Frequency].