YASKAWA HV600 Technical Reference page 210

Ac drive bypass for hvac fan and pump applications
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5.2 b: Application
Note:
If you set more than one of H3-02 and H3-10 to 16, the drive will detect oPE07 [Analog Input Selection Error].
PID Control Block Diagram
*1
The drive uses the largest value of Y1-06 [Minimum Speed], Y4-12 [Thrust Frequency], or d2-02 [Frequency Reference Lower Limit] for
Lower I Limit. When the drive is in Emergency Override Mode, it uses the largest value of Y1-06, Y4-12, d2-02, or S6-09 [Emergency
Override Min Speed].
*2
The drive uses the smallest value of Y1-40 [Maximum Speed], E1-04 [Maximum Output Frequency], or d2-01 [Frequency Reference
Upper Limit] for Upper I Limit. When the drive is in Emergency Override Mode, it uses the smallest value of Y1-40, E1-04, d2-01, or S6-
10 [Emergency Override Max Speed].
210
Figure 5.23 PID Block Diagram
YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference

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