14
EXT mode
■ Proportional control (Analogue control : See page 39)
The pump increases/decreases a stroke rate in the range of 0-360spm in proportion to 0-20mA.
An optimal proportional line must be established beforehand based on two different operating points (P1-A1,
P2-A2). Extra attention for unexpected pump behaviour may be needed for this type of control. In the following
control line, for example, 0spm does not come at 0mA. In other cases, the pump speed may reach 360spm
before 20mA (however, the pump does not run over 360spm at any mA-spm setting.).
Conditions
a. A1 and A2 must be 20mA or below
b. P1 and P2 must be 360spm or below
c. A1 and A2 must be different mA
d. P1 and P2 must be different spm
■ Multiplier setting (Digital control : See page 41)
The pump increases/decreases a stroke rate by the external signal and the multiplier. Set a multiplier (1-999
shots) per pulse in advance of operation.
*In the digital control with a preset multiplier, the pump does not run over the MAN speed at any pulse rate.
*The pump makes one shot per pulse when a multiplier is set to 1.
Example) When the multiplier is set to 5, the pump makes five shots per signal.
The buffer stores extra pulse signals which are entered before the scheduled shots per signal are
completed.
*Extra pulses are stored up to 255 pulses.
Operational functions
0
360spm
A1
P1
P2
A2
20mA
1 2 3 4 5 1 2 3 4 5
1 2 3 4 5 1 2 3
Pulse signal input
Pump operation
1 2 3 4 5
1 2 3 4 5
Pulse signal input
Pump operation
Summary of Contents for EHN-B11-NAE
Page 67: ...67 Specifications ...
