Glentek SMA8105, Руководство по эксплуатации и обслуживанию

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35 Glentek Inc., 208 Standard Street, El Segundo, California 90245, U.S.A. (310) 322-3026
SMA8105, SMA8205, and SMA8305 MANUAL
8. Adjust the Compensation pot CCW until the waveform is critically damped or one hook
overshoot. Then proceed to step 10.
9. If the desired waveform cannot be obtained by adjusting the Compensation pot, back
off(CCW) the Tach Gain pot a few turns and repeat step 8.
10. Do not adjust the Tach Gain or Compensation for the rest of the calibration procedure.
11. With battery box still connected at J1-3 and J1-4 for single-ended input (or if your system
uses the differential input, move battery box to J1-1 and J1-2), set battery box for a
known DC voltage. Adjust Signal Gain, RV2 (or RV1 for differential input) to obtain the
desired motor velocity.
12. If the motor is rotating in the wrong direction for a given input polarity, turn the Loop Gain
pot full CCW. Switch the MTR REVERSE (S2-6) from OFF to ON (or vice-versa) or
reverse the TACH input leads. Turn the Loop Gain pot back to full CW.
13. Remove the battery box, and repeat only step 4.
14. Calibration complete. Reconnect signal wires.
6.3.2 Trapezoidal Mode Amplifier Calibration Procedure - Current Mode:
The amplifier in this configuration, receives an analog, bi-polar input command which is
proportional to the required motor current(motor torque).
1. Turn the current limit (RV6) to mid position and the Loop Gain (RV7) full CCW.
2. Apply main power and fan power.
3. Slowly turn the Loop Gain (RV7) pot CW. Motor should be stopped or turning slowly. Set
the Balance (RV4) for 0V at J1-7 (ABS I).
4. Connect the oscilloscope to ABS I (J1-7), and the battery box to the Signal 2(single-
ended) Input, J1-3 (J1-4 as common). The voltage on J1-7 is a function of motor
current: 1V=5A. While pulsing a step input voltage, adjust the Current Limit for desired
peak current. If the desired peak current cannot be achieved with Current Limit pot full
CW, increase either the input signal or Signal Gain (RV2) for single-ended Input or
Differential Gain (RV1) for differential input.
5. With battery box still connected at J1-3 and J1-4 for single-ended input (or if your system
uses the differential input, move battery box to J1-1 and J1-2), set battery box for a
known DC voltage. Apply
)
input signal pulses and adjust the Signal Gain (RV2) pot or
(RV1 for differential input) to obtain the desired current gain of the amplifier.
6. If the motor is rotating in the wrong direction for a given polarity, turn the Loop Gain pot
full CCW. Switch MTR REVERSE (S1-6) from OFF to ON (or vice-versa). Turn the Loop
Gain pot back to full CW.
7. Remove battery box, and repeat step 3.
8. Calibration complete. Reconnect signal wires.