Pump Output Adjustments - ITW Dynatec DYNAMELT D15 Series Technical Documentation Manual

Page 7-30 Troubleshooting
Revised 10/14
Operation of the ASU's Gear Pump
Manual or Automatic Pump Operation
Choose MANUAL, STOP or AUTO gear pump operation via the PUMP button on the DynaCon-
trol Overview screen. When the Dynamelt's pump is to be operated manually (that is, without a
line following signal), the manual mode is used to control pump speed (and adhesive output). For
the gear pump to be operated in the automatic mode, a tach generator, or equivalent, (attached to
the parent conveyor line) must be provided and the following set-up procedure should be per-
formed:
1. The tach generator or the signal isolator must be adjusted so that the voltage from the speed
controller is 0 to10 VDC (but not more than +10 VDC when the conveyor is at maximum speed).
This voltage is measured at the LINE and COMMON terminals on the V6 Base module.
The 0-10VDC signal must be connected to the LINE terminal. See customer connector S1, S2.
2. The AUTO setting then changes pump speed for any given 0 to +10 VDC incoming
tachometer signal. Voltage will vary given production speed.
The speed can be adjusted (trimmed) in automatic mode by setting maximum and minimum RPM
values on the DynaControl keypad.
To make speed adjustments, follow the programming instructions on page 5-8.

Pump Output Adjustments

When the adhesive in the ASU's hopper has reached a temperature high enough for the pump to
operate safely, the controller will place the hopper in "Ready" condition and power will be sup-
plied to the pump. The pump is self-priming.
Pump output is adjusted by the motor speed control on the DynaControl keypad. However, if less
pressure is needed, maximum pressure of the pump can be decreased (or increased) by adjusting
the pressure relief valve installed on the pump output manifold. To change the setting of this valve,
refer to instructions in Chapter 3. The relief valve is factory set at 27 bar (400 psi) for gear pumps.
ITW Dynatec
D SERIES V6 DCL ASU Manuals