Micropump DB-380.B - Manual (Page 13)

13 of 20 MODEL 380 MOTOR INSTALLATION AND OPERATION MANUAL IOM # 7820
REV A
(10/99)
MICROPUMP, INC.
A Unit of IDEX Corporation
PO Box 8975, Vancouver, WA 98668-8975, USA
Phone: (360) 253-2008
Fax: (360) 253-2401
email: [email protected]
Website: www.micropump.com
MICROPUMP LIMITED
A Subsidiary of Micropump, Inc.
Howard Road, Eaton Socon
St. Neots, Cambs. PE19 3ET England
Phone: (44) (0) 1480-356900
Fax: (44) (0) 1480-356920
Website:
www.micropump.com
dimensions on pages 14-16).
Reassemble pump and motor (refer to the
assembly instructions).
NO TACHOMETER SIGNAL
CAUSE REMEDY
No power to the motor. Ensure that the proper voltage has been applied to
the motor power leads (red and black wires).
Wiring incorrect. Check that the tachometer lead (green wire)
connects to the positive input of the frequency
counter.
Check that the motor common (black wire)
connects to the negative or common input of the
frequency counter.
Motor is stopped. Ensure that the appropriate control voltage has
been applied to the control lead (white wire).
Also, ensure that the control power supply
common has been connected to the motor
common (black wire). Note that if the motor is
commanded to stop, there will be no tachometer
signal.
CYCLIC NOISE OR EXCESSIVE VIBRATION
CAUSE REMEDY
Loose mounting bolts. Tighten mounting bolts.
Foundation not rigid. Relocate motor.
Pump loose on motor. Tighten bolts attaching motor to pump.
Magnet hub loose on shaft or not set to proper
location on shaft Remove pump from motor. Set hub to proper
height on shaft. Tighten set-screw to 14 lb-in.