Troubleshooting guide

30
11. Specifications
Turndown: Up to 1000:1 with a steady state accuracy of +/- 2 % (added to pump accuracy rating)
3:1 with a steady state accuracy of +/- 1 % (added to pump accuracy rating)
Operation mode: AC motor speed control with speed and stroke length feedback
Manual stroke length control
Power Requirements
Recommended Minimum Wiring and Circuit Breaker
120 VAC Operation 240 VAC Operation
Actual
Draw
Circuit
Breaker
Wire
Size
Wire
Size
Actual
Draw
Circuit
Breaker
Wire
Size
Wire
Size
MPC and 0.25 Hp motor
6.9 A 10 A 14 AWG 1.5 mm
2
3.5 A 10 A 14 AWG 1.5 mm
2
MPC and 0.33 Hp motor
6.9 A 10 A 14 AWG 2.5 mm
2
3.5 A 10 A 14 AWG 1.5 mm
2
MPC and 0.5 Hp motor
9.3 A 15 A 14 AWG 2.5 mm
2
5.1 A 10 A 14 AWG 1.5 mm
2
MPC and 0.75 Hp motor
16.7 A 25 A 12 AWG 4.0 mm
2
9.3 A 15 A 14 AWG 2.5 mm
2
MPC and 1.0 Hp motor
16.7 A 25 A 12 AWG 4.0 mm
2
9.3 A 15 A 14 AWG 2.5 mm
2
MPC and 1.5 Hp motor
24.1 A 35 A 10 AWG 4.0 mm
2
12.1 A 20 A 14 AWG 2.5 mm
2
NOTE: AC drive capacitors will cause in-rush current demand when power is first applied to the unit.
Control Inputs
Wiring Specification / Description
Analog In #1
J11 pins 4-6 4-20mA control signal
Max current 30mA; Input resistance 200 Ohm
Internally protected with resetable fuse
Minimum signal accepted = 2.4 mA
Maximum signal accepted = 24 mA
Analog In #2
J11 pins 5-6 Not presently available – future release
Digital In #1
J11 pins 1-3 User to provide dry-contact input *
Digital In #2
J11 pins 2-3 User to provide dry-contact input *
Do not apply power, maximum 2K Ohm resistance to register as “active”
* Digital input functions:
1. Remote on/off control of metering pump
2. Level input from supply tank
3. Leak detection of the metering pump
4.
Flow detection, with use of external flow switch accessory