User's Manual

ACS System Setup Checklist
3A0006D 39
ACS System Setup Checklist
1.
Pressure Sensor Calibration
NOTE: Only a 4-20 mA output pressure transducer can
be used with the ACS.
NOTE: Calibration values for a Graco transducer are
listed on the label attached to the pump gearbox circuit
board cover. See F
IG . 23, page 28. For a non-Graco
transducer, refer to the manufacturer’s label or data
sheet.
2. Pump Lower Size Selection
NOTE: If the pump lowers are changed to a different
size after purchase, the plate information is no longer
valid.
3. Unit Selection
The defaults are psi and gpm.
4. User VFD Setup
NOTE: Each VFD brand will have varying setup param-
eters. ACS and E-Flo performance is optimized by the
following key VFD settings:
• analog input scaling
• 4 mA = 0 (zero) Hz
• 20 mA = 80 Hz
• Acceleration rate = 1.0 sec (for full range 0-80 Hz)
• Deceleration rate = 0.5 sec (for full range 0-80 Hz)
NOTE: If the ACS is used with an E-Flo 1500 pump and
a 3 HP motor, activating the VFD slip compensation fea-
ture may reduce motor heat and improve performance
under certain conditions.
5. E-Flo Motor Specific Parameters
Verify that the parameters entered in the VFD match the
motor parameters (rated voltage, maximum rated cur-
rent limit, rated frequency, rated speed in rpm).
Other setting selections will be required to allow for the
recognition of an analog speed command and motor ID
match and limits.
Contact Graco for motor information and/or a list of
locally supplied pre-approved motors.
NOTICE
Pressure sensor calibration information must be
entered into the ACS control module. Failure to do so
will result in Pressure Sensor Calibration Trip, nui-
sance trips, or system malfunctions.
Table 4: Measurement Unit Summary
Measurement English Metric
Pressure psi bar
Flow gpm lpm