Zenith ZeDrive - Set and Display as Other Units

Page 23
TO GET ASSISTANCE, CALL: 919-774-7667
ZENITH PUMPS
Set and Display as Other Units
1. Preliminary Action:
• Reducer Gear Ratio — R. If the pump is directly coupled with the motor, the gear ratio R=1
• Motor maximum speed — V
M
(RPM)
• Pump Capacity — C
P
(cc/rev)
• Coefficient between other unit and “cc/min” — K
U
• NOTE: It supports the customer’s unit only in (volume/time) format
2. Calculation:
2.1 Coefficient between other unit and “cc/min” — K
U
:
• Find out 1 new volume unit is equal to V (cc)
• Find out 1 new time unit is equal to T (min)
• 1 (volume/time) = V (cc) / T (min) = V/T (cc/min)
K
U
= V/T
Example:
If the preferred unit is (gallon/hour),
1 (gallon) = 3785 (cc)
1 (hour) = 60 (min)
1 (gallon/hour) = 3785 (cc) / 60 (min) = 63.08 (cc/min)
Therefore, K
U
= 63.08
3. Coding:
Check and change the following codes
Code 10 = 0
Code 11 = V
M
Code 20 = V
M
/ R × C
P
/ K
U
Code 22 = V
M
/ R × C
P
/ K
U
Code 34 = V
M
Code 37 = V
M
4. Wiring:
No wiring changes for this application
5. Result:
• The units of the setpoint and Tach on the drive’s panel will be in customer’s unit (volume/
time)