5
•
Turn the signal offset potentiometer clockwise to set the pump shaft speed to the desired minimum.
•
Set the process signal at its upper range limit (not exceeding 30V or 32mA).
•
Turn the signal range potentiometer (marked "Range" on back panel) clockwise to set the drive shaft speed to the desired
maximum.
If the process signal or pump speed are set above their designated maximums the pump will be overloaded which is signified by the
flashing of AUT. This is an indication of the limiting control and speed levels of the pump. Reset to operate within these levels.
•
Repeat the procedure until pump response coincides exactly with the process signal.
Remote control
Stop/Start
Connect remote switch between pins 7 and 15 of the 25D connector. A TTL compatible logic input (Low 0v, High 5V) may be
applied to pin 7. Low input stops the pump, high input runs the pump. With no connection, the pump will default to running.
Direction
Connect remote switch between pins 5 and 16 and disable the front panel reversing control by linking pins 6 and 18 of the 25D
connector. Open switch for clockwise rotation, close for counter-clockwise. Alternatively a TTL compatible logic input (Low 0, High
5V) may be applied to pin 5. Low input will run the pump in a counter-clockwise direction, High input in a clockwise rotation. No
connection; the pump will default to clockwise rotation.
Speed
A remote potentiometer with a nominal value of between 1k and 2k with a minimum of 0.25W should be wired as shown. When
using a remote potentiometer, do not apply a voltage/current control input signal at the same time. The speed control signal will
require calibration relative to the minimum and maximum settings of the potentiometer. Use the offset and range potentiometers as
described under calibration.
Strobe
The state of the pump may be monitored by utilising a 5V Hi Lo signal available at the 25D remote socket on the pump rear panel.
The strobe line will change state as soon as the motor starts or stops.
Tachometer output
This facility can be used to indicate motor speed or total the number of motor revolutions.
•
55rpm 2.937kHz
(40 pages)
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