16
Instruction Manual
These pumps have two operating modes: Local
(Pulse Indicator Light flashes green) and Remote
(Pulse Indicator Light flashes yellow). Pressing
the Power / Mode Selection Button switches
between Local and Remote modes. The default
configuration for operating mode is Local mode.
When the pump is in Local mode the Remote
ON
/
OFF
input is ignored. When the pump is
in Remote mode the Remote
ON
/
OFF
input is
always monitored. The pump will return to the last
power mode if power is interrupted.
NOTE:
The default configuration for the Remote
ON / OFF
input is:
open contacts = pump stopped
closed contacts = pump enabled
Therefore pins 1 and 2 of the External Control
Connector must be shorted together in external
mode for the pump to respond to external
signals.
Ful l (Open)
Empt y (Closed)
4-20 milliamp DC
4-20 milliamp DC
Higher Frequency Pulses
Lower Frequency Pulses
Pulse
Transmitter
RFP Flowmeter
Programmable
Divider
Programmable
Divider
FC Flowmeter/Contactor
A7 and A8
A7
A8
Optional
Low Level
Sensor
MICROPACE
™
A/D CONVERTER
-100
MP
MICROPACE
™
4 D IGIT DIVIDE
MP-400D
MICROPACE
™
4 DIGIT MU LT IPLIER
MP
®
®
-500M
Figure 16. Methods of External Triggering
SECTION 3 - OPERATION