Yaskawa F7 Drive Enhanced PID With Digital Velocity Follower - Manual (Page 5)

Date: 08/08/05, Rev: 05-08 Page 5 of 17 TM.F7SW.058
2.0 Changes from Standard Product
2.1 Enhanced PID / Digital Velocity Follower versus Standard Software
Feature
Enhanced PID /
Digital Velocity Follower
Standard
Software
PID Process Controller √ √
Full Range PID (2-input) √ √
PID + Frequency Reference Capable (3-input) √ √
PID x Frequency Reference Capable (3-input) √
PID Setpoint Offset Parameter Added √
Bi-Directional PID Output √ √
PID + Trim is Accomplished Algebraically, Regardless of
Commanded Direction
√
Frequency Reference as PID Setpoint √ √
Parameter B5-19 “PID Setpoint” can be changed during running √
Independent Digital PID Setpoint √ √
Independent Digital PID Setpoint (changeable during run) √
Multiple PID Setpoint Sources (digital preset, analog, pulse
input, Modbus RTU, option card)
√ √
Setpoint Ramp (when PID setpoint is from frequency reference) √ √
Setpoint Ramp (all PID setpoints, regardless of source) √
Multiple PID Feedback Sources (analog, pulse input) √ √
Feedback Detection (high, low, on-delay, off-delay, digital
output, alarm, fault, during run, always detected)
√
PID Monitors with User Units (scaled using parameter O1-03) √
Detailed PID Monitors (proportional, integral, derivative) √
Integral Hold Digital Input √ √
Positive Integral Hold Digital Input (integrator can only
decrease)
√
Negative Integral Hold Digital Input (integrator can only
increase)
√
PID Output Limit √ √
Independent + / - PID Output Limits (B5-06 PID limit now
functions only as a PID upper limit)
√
PID Output Gain can be proportional to the frequency reference √
PID Output Gain (0.1 Resolution) √ √
PID Output Gain (0.01 Resolution) √
Digital Velocity Follower Functionality Added for Use with a PG-
W2, PG-X2, or PG-B2 Option Card
√
Directional Precision Encoder Frequency Reference (requires
PG-W2 or PG-X2)
√
Parameter E2-04 (Motor Poles) is Available in All Control Modes
(advanced access level only for V/f and Open Loop Vector)
√
3. Limitations
The digital velocity follower feature (B1-01 = 5) cannot be used under either of the following conditions:
a. If a PG-W2 is installed, and “Motor 2” uses the V/Hz w/PG or Flux Vector control method (E3-01 = 1 or 3).
b. If a PG-X2 / PG-B2 is installed and control method is V/Hz w/PG or Flux Vector (A1-02 = 1 or 3).
Note: If the PG-W2 option is used, jumper HDR1 must be set to the “top”
position (using the 2 pins closest to the 4CN connector).