Edwards XDD1 115 V AC, Инструкция по эксплуатации

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Page 16
A746‐03‐885A ‐ Replacing the fuse on the circuit board (only XDD1 24V)
Configuring the XDD1 24V dc for external analogue (0 ‐ 10 V) speed
control
Remove the screw which secures the cover to the circuit board (refer to Figure 2 on page 5,
item 1). Move the cover carefully and only as far as necessary. Using a screw driver turn the
potentiometer anti‐clockwise to position 1 (refer to
Figure 12 on page 15). Assemble the
cover in reverse order. Apply external analogue 0‐10 V signal for motor speed control.
Voltage input: analogue 0 V....10 V
<0.5 V : Pump stopped
0.5 V to 10 V : Linear increase of the motor speed (~100 rpm to 2400 rpm)
Note:
Pump runs smoothly only at speeds > 200 rpm (> ~0.9 V).
The pump is factory set for 0‐10 V speed control when the potentiometer is in position 1.
Configuring the XDD1 24V dc for PWM speed control
1. Remove the screw which secures the cover of the circuit board) refer to Figure 2 on
page 5, item 1). Move the cover carefully. Using a screwdriver turn the
potentiometer anti‐clockwise to position 1 (refer to
Figure 12 on page 15).
2. Reconfigure ST1B for Pulse‐Width Modulation (PWM) control by moving the white
wire.
Control signal (setting the motor speed):
PWM; Low: 0 V ‐ 0.5 V; High: 5 V ‐ 24 V max.), Frame frequency: 10 Hz to 1.5 kHz.
0% to 100% PWM: Linear increase of the motor speed:
0 rpm (at 10% PWM) to 2400 rpm (at 100% PWM). Pump will run smoothly only at motor
speeds higher than 200 rpm.
Example: Pulse‐width at a frame frequency of 1 kHz and at 700 rpm motor speed 0.3 ms.
3. To stop the pump, disconnect the pump from the DC voltage supply.
4. Table 8 on page 17 shows how the pin connections on the 15 way D connector are
related to the internal wiring from the back of the 15 way D connector.
Table 7 Configuration details for terminal ST1B
Terminal ST1B V+ V‐ PWM A B
PWM ‐ Black White ‐ ‐
Voltage 0‐10 V DC White Black ‐ ‐