6 Mounting/Installation
Operating manual mzr-2542 / mzr
-
2942
32
Technical data subject to change without prior notice!
Last update: January 2016
6.5
Operation with the S-ND control unit
Optionally the micro annular gear pump mzr-2942 can be delivered with the
controller S-ND.
The controller S-ND controls the number of revolutions to achieve a constant
flow rate or positions the motor for precise dosage volumes. Values can be set
with the help of a potentiometer or with the external control signal 0-10 V.
Second a serial interface allows the control of precise feeding and dosing tasks
by an external PC. Included in the delivery volume are diskettes with a
Windows
®
based software. The software enables the operator to manage
dosing tasks by defining dosing data. A zero modem cable is included in the
delivery volume to connect the pump controller S-ND with a PC.
Controller S-ND
Power supply
U
B
12 – 24
V
Max. continuous current
I
dauer
336*) mA
Max. peak current
I
max
600*) mA
Velocity range
1 ... 6000*)
rpm
Input No. 1
Input resistor
18
k
Analog velocity command
Voltage signal
10
V
Digital velocity command
PWM Signal
low 0 ... 0.5 / high 4 ... 30
V
Frequency range
100 ... 2000
Hz
Output/Input No. 2
Error state
max. U
B
/ 30 mA
no error
switched to GND
Programmed as an input
low 0 ... 0.5 / high 4 ... U
B
V
Input No. 3
Logic level
low 0 ... 0.5 / high 4 ... 30
V
Memory for programs
7936
Bytes
*) Values are limited in the controller software
Table 24
Technical data controller S-ND
The control unit permits an easy startup of the pump with:
the possibility to connect the voltage supply to the delivered DIN socket
the possibility to connect the voltage supply with screw clamps
a 10-pole connector assembly for the motor cable
speed set with potentiometer
analog voltage signal 0-10 V for speed control at the screw clamps
9-pole connection plug for the RS-232 interface
error output with status LED, programmable also as trigger input with screw
connections
tumbler switch S1 for the connection of digital input No. 3 of the motor
control unit
screw clamps for the connection of digital inputs No. 3, 4, 5 of the motor
control unit