Yaskawa 2Y25-0423 User Manual
For GPD515 / G5 Adjustable Frequency Drives
Digital Follower (Velocity)
FLASH Memory Software Option (S11103)
Part Number: GPD515C-ZZZZ-CS007
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)
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
(1)
ZZZZ refers to the base Model Number of the drive in which the software is installed.
Rel. 09/15/2000 Page 1 of 13 Doc. No. 02Y00025-0423
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).
The master encoder (or pulse reference source) should be wired to terminals 10 thru 16 according to the PG-W2
instruction sheet (02Y025-0397).
NOTE: The +12V supply on the PG-W2 card is capable of only 200mA, be sure not to overload it.
2.0 I/O Definitions
2.1 New Multi-Function Digital Input Settings
For Parameters H1-01 through H1-06.
Addition to Table 5-2 Multi-Function Input Terminal Data Settings (Section 5.32)
Data Function Description Availability
80
81
(2)
GPD515 Technical Manual TM4515.
Pulse B w/ N.O.
Pulse B w/ N.C.
Closed = Pulse monitor will output speed feedback
(Terminals 3 thru 8)
Open = Pulse monitor will output master reference
pulses (Terminals 10 thru 15)
Closed = Pulse monitor will output master reference
pulses (Terminals 10 thru 15)
Open = Pulse monitor will output speed feedback
(Terminals 3 thru 8)
(2)
0 1 2 3
X X X
X X X
2.2 New Multi-Function Digital Output Settings
For Parameters F5-01 and F5-02, and H2-01 through H2-03.
None.
2.3 New Multi-Function Analog Input Settings
For Parameters H3-05 and H3-09.
None.
2.4 New Multi-Function Analog Output Settings
For Parameters H4-01 and H4-04.
None.
X
X
Rel. 09/15/2000 Page 2 of 13 Doc. No. 02Y00025-0423
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. Set the “Following Method” as desired (see Figure 1). With a setting of “1-direction” (P2-01 = 0) and the master
running forward, the follower motor will run forward. When the master runs in reverse, the follower will stay at
zero speed. With a setting of “Bi-directional” (P2-01 = 1) the follower will run whichever direction the master is
running. A setting of “Absolute” (P2-01 = 2) will result in the follower running forward regardless of the master’s
direction.
Figure 1: Parameter P2-01 Description
4. Parameters P1-01, P1-02, and P1-03 can be calculated and set in many ways. Figure 2 illustrates the effect
those parameters will have on the follower’s frequency reference. When it is desired to have the follower motor
shaft turn at exactly the same speed as the master encoder, use Table 1 below.
Table 1: Common Settings for Parameters P1-01 thru P1-03
Master
Encoder PPR
1024 2 125 128 0.00
2048 2 125 256 0.00
2500 2 2 5 0.00
1024 4 125 64 0.00
2048 4 125 128 0.00
2500 4 4 5 0.00
10000 4 1 5 0.00
1024 6 375 128 0.00
2048 6 375 256 0.00
2500 6 6 5 0.00
10000 6 3 10 0.00
• If the above table does not include your specific setup, use the following formula to determine the settings of
P1-01, P1-02 & P1-03.
P1-01 = Number of Motor Poles (Follower Motor) * 500
P1-02 = Pulse Generator PPR (Master Encoder)
P1-03 = 0
If a ratio different from 1 : 1 is needed, use the following equation:
X : Y - Where X = Master Encoder Revolutions and Y = Follower Motor Revolutions
P1-01 = Number of Motor Poles (Follower Motor) * 500 * Y
P1-02 = Pulse Generator PPR (Master Encoder) * X
P1-03 = 0
5. Verify that the master reference encoder is working. Bring up parameter U1-01 on the digital operator by
pressing MENU then DATA/ENTER. When the master reference encoder is moving, a non-zero frequency
reference should show up here. If not, troubleshoot encoder wiring, or verify that P2-01 is not set to 0 (One
direction).
Follower
Motor Poles
P1-01
Setting
P1-02
Setting
P1-03
Setting
Rel. 09/15/2000 Page 3 of 13 Doc. No. 02Y00025-0423
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
Follower is running too fast: Decrease P1-01, or
7. Optional Step: If desired, the pulse output from the PG-W2 card can be switched between the master
reference signal and the feedback signal by programming a Multi-Function Input Terminal (terminals 3 through
8, parameters H1-01 through H1-06) to a value of 80 or 81. Then a contact closure can switch between a
straight master/follower and a cascaded follower. Refer to the drawing on the page one of this instruction
manual. If no further programming is done, Follower “B” will follow the master reference encoder. If a multifunction input is programmed and selected in Follower “A”, Follower “B” will follow Follower “A” instead of the
master reference encoder.
8. Done.
Decrease P1-02, or set P1-03 to a positive number.
Increase P1-02, or set P1-03 to a Negative number.
4.0 Custom Software Parameters
4.1 New Program Group
Group P
Pulse Input
4.2 New Program Function
Function P1
Pulse Ratio
Function P2
Follow Options
4.3 New Program Parameters
Figure 2: Block Diagram – Frequency Reference
Rel. 09/15/2000 Page 4 of 13 Doc. No. 02Y00025-0423
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