Pulsafeeder Pulsa Series Cruise Control - Manual (Page 15)

8.3 Drive Speed Calibration
See drive layout, Figure 3, on following page.
Requirements and Warnings:
• Pump will operate during testing
• System must be open to allow flow, or pump must be disconnected from system
• Must be safe to operate pump
• Field wiring should be verified
• Applicable safety precautions should be followed
Use the following sequence to calibrate the drive. It is assumed that maximum speed will be either 90V or 180V
as applicable. Users may choose to set minimum speed to 0, or may choose a higher value such as 10-15% to
prevent the motor from lugging or operating erratically.
Calibrate local mode first:
1. Maximum speed
a. Set local speed pot to MAXIMUM
b. Use “MAX SPEED” pot to adjust maximum speed
2. Minimum speed
a. Set local speed pot to MINIMUM
b. Use “OFFSET SPEED” pot to adjust minimum speed
3. Check adjustment at both ends of the range and re-adjust as necessary
Calibrate remote mode second:
1. Minimum speed
a. Send MINIMUM (4 mA) signal
b. Use “ZERO BIAS” pot to adjust minimum speed
2. Maximum speed
a. Send MAXIMUM (20 mA) signal
b. Use “CURRENT REF GAIN” pot to adjust maximum speed
4. Check adjustment at both ends of the range and re-adjust as necessary
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