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Installation
10.2.2 Operating modes
Manual (internal operation)
The pump operates with the stroking rate set manually. This is set
between 0 and 120 (180) strokes per min. using the
and
keys.
Analog
Controlling the pump from an analogue signal, e.g. 4-20 mA. The stroking
rate is set proportional to the control signal. The maximum stroking rate
is the number of pulses which is set in manual operation before
programming the pump. Pin allocation see page 37.
Contact (external operation)
Controlling the pump via voltage-free contacts (e.g. water meters). For the
"pulse control" option the incoming pulses can be stepped up or stepped
down. The maximum stroking rate is the number of pulses which is set in
manual operation before programming the pump. Pin allocation see
page 37.
10.2.3 Functions superior to the operating modes
Start/stop key
STOP
The pump can be stopped at any time by pressing the
key and
START
started again with the last setting by pressing this key again.
Control function "PAUSE"
Switching the pump on and off via the "PAUSE" control function using a
universal cable and voltage-free contact. Pin allocation see page 37.
Empty message "LEVEL"
Connection possibility of a two-stage float switch. If the level of the fluid
in the supply container sinks to approx. 30 mm above minimum an early
warning is issued. For the "fault annunciation relay" option the built-in
relay switches and the pump continues to operate. If the level sinks any
lower the pump is stopped. Pin allocation see page 37.
Option "Timer"
With the timer released the pump can only meter during the switch-on
times set.
10.2.4 Parallel connection
Version 2.0
Page 35 of 88 pages
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