Operating instructions

Page 33
ProMinent
®
Features of the S2Ca metering pumps
NOTE
• Sigma control pumps are fitted with a 3-phase WBS motor, but thanks to the internal
microprocessor control, are connected directly to a 1-phase line voltage. The connection
data of the pump below is therefore different to that of the motor (see chapters
“Technical Data” - “Motor Data”, “Identcode Feature” “S”).
• The performance data in 3.1.1 are measured with the S2Ba (base model with 3-phase
motor). If the S2Ba has been fitted with a 1-phase motor there may be up to 5 % speed
reduction due to the different motor characteristic curve, i.e. corresponding 5 % reduced
feed rate.
•
The controller changes over to digital stroking mode at low stroke frequencies! This takes
place at stroke frequencies below 1/3 of the maximum stroke frequency. This function is
designed to ensure sufficient cooling of the motor and low stroke frequencies.
Type: 100 – 230 V ± 10 %, 50/60 Hz
at 100 V at 230 V
nominal output 250 W 250 W
nominal current 3.2 A 2.0 A
peak current (in operation)* 10 A 5.5 A
making peak current 12 A 24 A
fuse, internal** 4.0 AT (1.5kA) 4.0 AT (1.5kA)
* internal switching
** Only genuine ProMinent fuses, item no. 732414, may be used!
5.2 Function description, controller
Operating modes Operating modes are selected using the MODE menu (depending upon identcode, some
operating modes may be absent).
“Analogue” operating mode: (Identcode, control variant: analogue)
The stroke rate is controlled via an analogue electrical signal via the “external control” terminal.
Signal processing is pre-selected at the controller.
“Manual” operating mode:
The stroke rate is controlled manually via the controller.
“Contact” operating mode:
This operating mode offers the opportunity to make fine adjustments with small increase/
decrease factors. Dosing can be activated by a pulse via the “external control” terminal or by a
semiconductor element. With the “pulse control” option it is possible to pre-set a feed quantity
(batch) or number of strokes (factor 0.01 to 99.99) via the control unit.
“Batch” operating function:
This operating mode offers the option of working with larger transfer factors (up to 65535).
Metering can be triggered by pressing the P key or a pulse from the “external control” terminal
via a contact or semiconductor element. A batching quantity or number of strokes can be pre-
selected via the control unit.
“PROFIBUS
®
” mode: (Identcode, control variant: PROFIBUS
®
)
This operating mode provides the option of controlling the pump via the PROFIBUS
®
(see
“Supplementary instructions for ProMinent
®
gamma/ L and ProMinent
®
Sigma versions with
“PROFIBUS
®
”).
Functions The following functions can be selected using the SET menu:
“Calibrate” function (Identcode, stroke length adjustment: manual + calibration):
The S3Ca can be operated in all operating modes including in calibrating mode. The
corresponding continuous displays can show the actual feed quantity or the feed rate.
Calibration is maintained within the stroke frequency range 0-180 strokes/ min. Calibration is
also maintained when a stroke frequency is altered up to ±10 % scale divisions.
“Auxiliary frequency” function:
It is possible to set a stroke rate in the SET menu, which may be activated via the “external
control” terminal. This auxiliary frequency overrides all other pre-set stroke rate frequencies.
“Flow” function:
Stops the S2Ca when the flow is insufficient. In the SET menu, the number of failed strokes is
entered after which the pump will be turned off.
BA_SI_036_06_10_EN.p65 08.06.2010, 11:38 Uhr33