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With this factory-installed FLASH software, the
GPD515 has the ability to precisely follow the
speed of a master encoder or drive. The
speed / frequency ratio between the master
and the follower are infinitely adjustable.
This document is an addendum to Technical
Manual TM4515, listing the effect of this
software on the parameters in the drive and
function descriptions in the manual.
(1)
ZZZZ refers to the base Model Number of the drive in which the software is installed.
Date: 07/01/04, Rev: 04-07
GPD515/G5 Software Option (VSG111104)
Part Number: CIMR-G5MXXXXXF-045
Page 1 of 13
Digital Velocity Follower
(1)
Specifications:
• Requires PG-W2 (DS014) card to function
• Available for all GPD515 drives
• 0.001 Hz Resolution
• Accepts Only Quadrature/Line Driver
Signals
• Accepts virtually any encoder resolution
• Bi-directional (Selectable)
• "Draw" adjustable from –99.99% to
+99.99%
• Ratio and "Draw" adjustable via:
Digital Operator
Serial Communications or
Analog Signal (0 – 10V or 4 – 20 mA)
• Control Modes: Open Loop Vector, Flux
Vector & V/f
• Serial Communications: Modbus RTU
DeviceNet, Modbus Plus & Profibus
TM.G5SW.045
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Related Manuals for YASKAWA GPD515/G5
Summary of Contents for YASKAWA GPD515/G5
- Page 1 Digital Velocity Follower GPD515/G5 Software Option (VSG111104) Part Number: CIMR-G5MXXXXXF-045 With this factory-installed FLASH software, the Specifications: • Requires PG-W2 (DS014) card to function GPD515 has the ability to precisely follow the • Available for all GPD515 drives speed of a master encoder or drive. The •...
- Page 2 Digital Velocity Follower 1.0 Wiring Wire the incoming power, motor, accessories and control wiring as specified in the GPD515 Technical Manual TM4515. If there is an encoder on the motor that this drive is running, wire that encoder to terminals 1 through 9 according to the PG-W2 instruction sheet (02Y025-0397).
- Page 3 Digital Velocity Follower 3.0 Startup Procedure 1. Perform the appropriate procedure for start-up using Section 2.2 of the GPD515 Technical manual. Most applications with this software utilize the flux-vector control method, which is highlighted in Section 2.2b. 2. Set the reference source to “Pulse Reference” (b1-01 = 5). 3.
- Page 4 Digital Velocity Follower 6. If the follower drive needs to run at a different speed, adjust one or more of the following parameters: Follower is running too slow: Increase P1-01, or Decrease P1-02, or set P1-03 to a positive number. Follower is running too fast: Decrease P1-01, or Increase P1-02, or set P1-03 to a Negative number.
- Page 5 Digital Velocity Follower Gear Tooth 1 P1-01= 1 P1-01 Gear Tooth 1 Setting Range: 0 to 10000 Factory Default: Modbus Address: 0580H This is the “Numerator” portion of the pulse ratio. (See Figure 2) Gear Tooth 2 P1-02= 1 P1-03 Gear Tooth 1 Setting Range: 0 to 10000...
- Page 6 Digital Velocity Follower Follow Method P2-01 = 0 P2-01 Follow Method Setting Range: 0 to 2 Factory Default: Modbus Address: 0590H This parameter effects how the drive will react when the master pulse reference source or encoder changes directions (fwd or rev). Setting Description One Direction...
- Page 7 Digital Velocity Follower 4.4 Modified Parameter(s) Reference Source b1-01 = 1 b1-01 Reference Source Setting Range: 0 to 5 Factory Default: Modbus Address: 0180H This parameter determines from what source the frequency reference will come from. Added was a setting of “5 – Pulse Reference”.
- Page 8 Digital Velocity Follower Appendix 1: Advanced Application Notes Part 1: Web Process Line - 1 : 1 follower with a 5% draw Step 1: Calculate the Frequency Ratio 500( FrequencyRatio PPRm df Where: dm = diameter of master roll df = diameter of follower roll PPRm = Master Reference Encoder pulses per revolution GBf = Follower Gear Box ratio (motor RPM / roll RPM) Pf = Motor poles, follower motor...
- Page 9 Digital Velocity Follower Step 2: Determine drive parameters P1-01 & P1-02 If Frequency Ratio ≥ 1 If Frequency Ratio < 1 P1-01 = Freq. Ratio * 10000 P1-01 = 10000 P1-02 = 10000 P1-02 = 10000 / Freq. Ratio EXAMPLE: On a paper machine, a nip roll (follower roll) has to follow master roll with a 5% fixed draw.
- Page 10 Digital Velocity Follower Part 2: Widget machine - 1 : 1 follower (detailed explanation) Overview: In the above drawing there is a machine where one section has to follow another with an exact speed match. The portion of the machine that is the “master” has an encoder mounted to a portion of the machine that is moving at line speed, such as a line shaft.
- Page 11 Digital Velocity Follower PG-W2 Theory Of Operation The PG-W2 card is a dual input encoder card. One input into the PG-W2 card can be used as a frequency reference (terminals 10 - 13). The other input can be used as a speed feedback (terminals 3 - 6).
- Page 12 Digital Velocity Follower For the sake of determining the frequency ratio, assume that parameter P1-03 is set to 0.00%. This would make the frequency at the same as at Frequency Ratio: With all of the above equations solved, the frequency ratio can now be determined. Ideally, P1-01 would equal the frequency at , and P1-02 would equal the frequency at , however, only whole...
- Page 13 Digital Velocity Follower Part 3: Variable Ratio Using A Potentiometer & The PG-W2 card Sometimes an application will call for a variable ratio or “draw” while using the PG-W2 card. For example: A follower drive needs to have an exact speed match plus an adjustable 0 - 5% overspeed.
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