Operational Modes
DynaDrive 1525-BRS - User Guide Page 16
4.2.2 Velocity Mode- Setup
To set up and run the DynaDrive 1525-BRS in the Velocity mode, perform the following:
1. Turn power off.
2. Remove J1.
3. Check all wiring connections. Verify that the J3 jumper is removed.
4. Check that the pots are set per Table 4.
5. Inhibit the DynaDrive by pulling pin 8 of J1 to common.
6. Replace J1.
7. Turn power on.
8. Insure that the voltage at COMMAND + and COMMAND – is zero.
9. Enable the DynaDrive by removing the inhibit of step 5.
10. The green LED should be the only LED on. No other LEDs should be on at this point. If
any other situation exists, check the TROUBLESHOOTING section of this manual.
11. Slowly turn the PEAK CURR LIMIT pot CW. If the motor runs away, turn the power
off, reverse the velocity feedback leads and repeat above. If the motor does not run
away, turn power off and wait for the green LED to go out, disconnect J1. Set the PEAK
CURR LIMIT pot to the value given in Table 2. Re-install J1, turn power on and
continue
12. Turn the COMPENSATION pot CW until the motor starts buzzing. Now turn the pot
CCW until the motor stops buzzing and then turn another 1 ½ turns CCW.
13. The motor shaft should not be rotating at this point. If it is slowly rotating, adjust the
BALANCE pot until rotation is stopped.
14. With zero voltage at COMMAND + and COMMAND –, the motor shaft should be stiff
and difficult to turn. A low voltage at COMMAND + will cause the motor to turn at a
slow speed with high torque and the motor should be difficult to stall. The motor speed
should be proportional to the COMMAND voltage.
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