5.11 S: Special Applications
386 YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
• U5-19 [PI2 Control Input]: Input into the proportional and integral calculation as specifed by the target setpoint and
feedback.
• U5-20 [PI2 Control Output]: Different for different S3-01 [PI2 Control Enable Selection] and S3-12 [PI2 Control
Disable Mode Sel] settings.
– When S3-01 > 0 [Enabled], the drive will show the calculated PI2 Control output.
– When S3-01 = 0 [Disabled], S3-12 [PI2 Control Disable Mode Sel] will set what to show.
â– PI2 Control Block Diagram
Figure 5.95 shows the general overview for the PI2 Control.
Figure 5.95 PI2 Control Block Diagram
*1 The drive calculates the actual integral limit as:
• Upper limit = Min (S3-08, S3-09 - PI2 P portion)
• Lower limit = Min (-S3-08, S3-10 - PI2 P portion)
*2 When the MFDI set for H1-xx = A8 [MFDI Function Selection = PI2 Control Disable] is activated, you must set the PI Integrator as:
• S3-12 = 1 [Lower Limit (S3-10)]: PI Value = S3-10
• S3-12 = 2 [Setpoint]: PI Value = S3-05
â– S3-01: PI2 Control Enable Selection
No.
(Hex.)
Name Description
Default
(Range)
S3-01
(321A)
PI2 Control Enable Selection Sets when the PI Auxiliary Control function is enabled: 0
(0 - 3)
0 : Disabled
1 : Always
PI2 Control is always active.
2 : Drive Running
PI2 Control is active only when the drive is running.
3 : Motor Running
PI2 Control is active when the drive receives a Run command and is not in baseblock, DC injection, or zero speed.
â– S3-02: PI2 Control Transducer Scale
No.
(Hex.)
Name Description
Default
(Range)
S3-02
(321B)
RUN
PI2 Control Transducer
Scale
Sets the full scale (10 Vor 20 mA) output of the pressure transducer that is connected to the analog
input terminals programmed for PI2 (Setpoint or Feedback).
100.00
(1.00 - 600.00)
Note:
Parameters S3-04 [PI2 Control Unit Selection], S3-03 [PI2 Control Decimal Place Pos], and S3-02 [PI2 Control Transducer Scale] set the
unit, resolution, and upper limit.
To Next Page
Loading...
Need help?
General
