Setup speed feedback, 8a. check speed feedback polarity – GE Industrial Solutions DV-300 DC Quick Start User Manual

Page 20

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GEH-6129

—————— Quick Start up guide ——————

QS

20

8. SETUP SPEED FEEDBACK

If the DV-300 is intended for final use with armature
control (no tach or encoder), go directly to step 10 ,
speed self tune.

8a. Check speed feedback polarity

Repeat the previous procedure 7a. to run the motor and
drive forward again. Now verify speed feedback polarity:

For enc1 or enc2 inputs:

go to the keypad menu, press the down arrow until:

Press ENT

press down arrow twice to menu heading:

Press ENT

Press ENT

press the down arrow twice to get to the menu

Press ENT

press the down key 4 times to see parameter Enc 1 speed
( if using encoder 1 for speed feedback)

press the down key 5 times to see parameter Enc 2 speed
(if using encoder 2 for a digital encoder feedback)

It is not necessary at this time for the speed feedback
value to be exactly correct, but this is to check for +
polarity, and to see the value is non zero and is stable if
the motor speed is stable.

A zero value, or an intermittent value in the
corresponding display means the encoder is not being
read. The wiring, connections, power supplies,
hardware jumpers, etc. must be verified and a value
read in the display for proper final operation.

For an analog DC tach:

While running forward, simply read the analog tach
output voltage at the drive tach terminal board + and -
.

The polarity should match the terminal labels.

8b. Setup ENC 2 for digital encoder for
speed feedback

- check hardware jumpers S21, S22, and S23 are
set =

OFF for a 5 V encoder

ON for a 15 - 30 V encoder

- hardware jumper S28 = ON

- hardware jumper S20 = ON if the C channel (also
called marker or index channel ) is used.

Press CANC until the main menu, shown in all capital
letters in the keypad, is reached.

Use the up or down keys to find the main menu START
UP. Press ENT.

Press the down key until the menu shown is:

START UP
Speed feed-back

Press ENT

Speed feed-back
Speed feed-back sel

Press ENT

Press the - key until Encoder 2 is shown,

Press ENT

Press the down arrow 3 times to show the menu:

Press ENT

enter the encoder nameplate PPR (pulses per
revolution) as recorded in section 3d., press ENT

Press the down arrow twice to get to the menu:

Speed feed-back
Refresh enc 2

Press ENT

press the + key to enable, press ENT.

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