Yaskawa DS387 User Manual

For GPD 515/G5, GPD 503

Adjustable Frequency Drives

and VCD 703 Vector Control Drives

ANALOG SPEED REFERENCE (BIPOLAR) (AI-14B)

MODEL DS387

Before installing this option, a TECHNICALLY QUALIFIED INDIVIDUAL, who is familiar with this type of
equipment and hazards involved, should READ this ENTIRE INSTRUCTION SHEET.

IMPORTANT

This option may have been installed by the factory. However, certain steps can
only be completed at the installation site. Therefore, review and then perform
those steps which complete the installation process.

If you are installing this option in a: Use Section:

GPD 515/G5 ...................................... A (Sheet 2)

VCD 703 ............................................ B (Sheet 7)

GPD 503 ........................................... C (Sheet 11)

CAUTION

THIS OPTION CONTAINS ELECTROSTATIC SENSITIVE DEVICES. PERSONEL
SHOULD BE GROUNDED BEFORE REMOVING CONTENTS FROM THE
CARTON AND INSTALLING INTO THE EQUIPMENT.

WARNING

HAZARDOUS VOLTAGE CAN CAUSE SEVERE INJURY OR DEATH.
LOCK ALL POWER SOURCES FEEDING DRIVE IN "OFF" POSITION.

Yaskawa Electric America, Inc-www.drives.com

02Y00025-0296 Page 1 OF 14

REL. 08/23/91

ANALOG SPEED REFERENCE

(BIPOLAR) (AI-14B) MODEL DS387

Section A: Installation in a GPD 515

INTRODUCTION
When installed, this option allows the user to interface three separate high resolution analog input signals, each of

which may be either current or voltage (13-bit plus sign). These signals can act as a direct replacement for the
three existing analog inputs available on the drive (3-channel individual mode), or the signals can be added together
and used as a single frequency reference (3-channel addition mode). Gain and Bias are adjustable for both modes
using drive parameters. Polarity (sign) of the speed reference controls direction of motor rotation.

INSTALLATION
A1. Disconnect all electrical power to drive.

A2. Remove drive front cover. Check that CHARGE indicator lamp inside drive is off.
A3. Verify voltage has been disconnected by using a voltmeter to check for voltage at incoming power terminals

(L1, L2, L3).

NOTE: If this option is being installed in a GPD 515 with speed feedback, the speed feedback card needs to
be temporarily un-installed to allow access to the connector 2CN on the Drive’s Control Board and TC1-TC4
on the AI-14B option card.

A4. See Figure A1. Install the option on the Main Control Board, 1PCB, and ensure 2CN is properly connected.
Make sure Electrostatic procedure is followed.

Figure A1. Installation of Analog Speed Reference (AI-14B) in GPD 515/G5

Yaskawa Electric America, Inc-www.drives.com

02Y00025-0296 Page 2 OF 14

REL. 08/23/91

ANALOG SPEED REFERENCE

(BIPOLAR) (AI-14B) MODEL DS387

Table A1. AI-14B Specifications in GPD 515

Parameter Value

Input Signal Level 0 to ±10V DC (Input Impedance: 20kΩ)

0 to 20mA (input impedance : 500Ω)

Input Resolution Voltage: 13 bits (1/8192) plus sign (polarity)

Current: 1/6554

A5. Determine whether a voltage or current
signal will be inputted on each of the channels of
the AI–14B board, and set selection jumpers
accordingly (see Figure A2).

A6. Wiring. See Figure A3 for Analog Speed
Reference connections. See Table A2 for terminal
functions.

ALL JUMPERS

(SHORTING

PLUGS) SHOWN

IN POSITION

FOR CURRENT

INPUT

• • •

V C

• • •

V C

• • •

V C

Figure A2. Voltage/Current Selection on AI-14B

Table A2. Terminal Functions of AI-14B

Terminal Function Signal Level Notes

TC1 Analog voltage/current Voltage Input: — Input Resolution:

input Input voltage: 0 to ±10V/0 to ±100% Voltage: 1/8192 (13 bits) plus

Input impedance: 20K Ω sign (polarity)

TC2 Analog voltage/current Current: 1/6554

input Current Input:

Input current: 0 to 20mA/0 to ±100% — Signal Linearity: ±0.1%

TC3 Analog voltage/current Input impedance: 500 Ω

input — Terminal screws are metric

size M3.

TC4 Signal common 0V

CAUTION

PART OF

AI-14B

BOARD

KEEP ANALOG SPEED REF. (I.E. CONTROL CIRCUIT) WIRING
SEPARATE FROM MAIN CIRCUIT INPUT/OUTPUT WIRING.

CAUTION

TO PREVENT ERRONEOUS OPERATION CAUSED BY NOISE
INTERFERENCE, USE SHIELDED CABLE FOR CONTROL WIRING,
AND LIMIT DISTANCE TO 10M (33 FEET) OR LESS.

CAUTION

IF ANY OF THE CONTROL SIGNAL INPUT TERMINALS (TC1 THRU
TC3) ARE NOT USED, JUMPER THEM TO 0V TERMINAL (TC4).

Yaskawa Electric America, Inc-www.drives.com

02Y00025-0296 Page 3 OF 14

REL. 08/23/91

ANALOG SPEED REFERENCE

(BIPOLAR) (AI-14B) MODEL DS387

IMPORTANT

Because the analog speed reference is converted by 1/16384 resolution, the
voltage source accuracy of the analog speed reference source must be con­sidered. To ensure speed control accuracy, use a high precision power supply for
the voltage source.

Route wires from the drive and connect to the peripheral device. Refer to "Electrical Installation" in the drive
technical manual for further information on use of shielded cable.

HIGH ACCURACY
VOLTAGE / CURRENT
DEVICES

0-±10V
or 0-20mA

0V

0-±10V
or 0-20mA

0V

0-±10V
or 0-20mA

0V

TC1

TC2

TC3

TC4

SHIELD

AI-14B BOARD

14 BIT
A/D

14 BIT
A/D

14 BIT
A/D

0V

MCCB

SEE
FIGURE A4
FOR BLOCK
DIAGRAM

L1
L2
L3

2CN

12

GPD
515

2CN

T1
T2
T3

MOTOR

I M

E

Figure A3. Interconnection for Analog Speed Reference (AI-14B) Circuit in GPD 515

A7. Adjustments.
There are no adjustments to be made on the Analog Speed Reference option; however, the GPD 515 will have to

be reprogrammed for the input requirement(s) of the remote device and the reversing or non-reversing
requirement of the specific application.

WARNING

IF THE APPLICATION REQUIRES THAT REVERSE MOTOR
ROTATION BE PROHIBITED, PARAMETER b1-04 MUST BE SET
TO " 1 " SO THAT THE MOTOR WILL STOP ANY TIME
POLARITY OF THE SPEED REFERENCE GOES NEGATIVE.

Yaskawa Electric America, Inc-www.drives.com

02Y00025-0296 Page 4 OF 14

REL. 08/23/91

Channel 1 (TC1)

Channel 2 (TC2)

Channel 3 (TC3)

F2-01 = 0

Three Channel

Individual

14 Bit
A/D

14 Bit
A/D

14 Bit
A/D

H3-01 Sig.

010-10V

±10V

H3-01 Sig.

0

0-10V

1

±10V

2

4-20mA

H3-01 Sig.

010-10V

±10V

U1-15

U1-16

U1-17

ANALOG SPEED REFERENCE

(BIPOLAR) (AI-14B) MODEL DS387

–

–

–

100%

+

100%

+

100%

+

Bias

H3-03

X

Bias

H3-11

X

Bias

H3-07

X

+

+

+

Gain

H3-02

X

Automatic Speed

Reference

+

Gain

H3-10

X

Select Via

H3-09

+

Gain

H3-06

X

Select Via

H3-05

+

F2-01 = 1

Three Channel

Addition

1/10

+

+

+

1/10

X

–

100%

+

H3-03

X

H3-02

+

X

Option PCB

Reference

+

Figure A4. AI-14B Block Diagram

As Figure A4 shows, there are two possible modes of operation for the AI-14B board when it is installed in the
GPD 515. These modes are selected by drive parameter F2-01 (AI-14B Input Selection). When F2-01 is set to
" 0 ", 3-channel individual mode is selected. In this mode the AI-14B replaces the analog inputs on the GPD 515
main control board (see Table A3). When F2-01 is set to " 1 ", 3-channel addition mode is selected. In this mode
the AI-14B adds the three channels together. This new “added” signal replaces the automatic speed reference
input (terminal 13) when reference source is set to "Option PCB" ( b1-01 = 3).

Table A3. AI-14B Configuration in the GPD 515

Mode AI-14B "Equivalent" Terminal on "Gain" "Offset"

Terminal GPD 515 Control Board Parameter *** Parameter ***

3-Channel

Individual *

3-Channel

Addition **

* When using the 3-Channel Individual mode, Channel 1 (TC1) becomes the automatic speed

TC1 13 H3-02 H3-03
TC2 14 H3-06 H3-07
TC3 16 H3-10 H3-11
TC1
TC2 13 H3-02 H3-03
TC3

reference, Channel 2 (TC2) can be configured using parameter H3-09 (see section 5.22 of the
GPD 515 technical manual), and Channel 3 (TC3) can be configured using parameter H3-05.

** In order to use the 3-Channel Addition mode, parameter b1-01 (Reference Source) must be

set to " 3 " (Option Board).

Frequency Reference = TC1 +

TC2 +TC3 x TC1

10 10

*** See Figure A5.

Yaskawa Electric America, Inc-www.drives.com

02Y00025-0296 Page 5 OF 14

REL. 08/23/91