6 Mounting / Installation
Operation manual mzr-2509 Ex/ mzr-2909 Ex / mzr-4609 Ex / mzr-7209 Ex
44
Technische Änderungen ohne Vorankündigung vorbehalten
Last update: October 2016
Make sure that the polarity of the supplied direct current is correct, otherwise
electronics will be damaged.
The input circuit at the analog input is layed out as a differential amplifier. If
the analog input is “open” there is already a voltage of 2 V. That means in
this case that the motor would be turning at a speed of about 2000 rpm. In
order to set 0 rpm the input must be connected over a low ohm resistor to
the analog ground (AGND) or connected to the AGND-voltage level.
13.
The micro annular gear pump may now be put into operation by increasing
the external voltage signal. A voltage signal of 0 V corresponds to 0 rpm
and 10 V to the maximal programmed speed (see chapter 1.7).
Remarks
:
−
You may adjust speed of the micro annular gear pump without the need to
connect it to the serial interface.
−
In case error occurs for example due to the motor overload - the green status
LED on the terminal Box S-G05 will turn red.
6.9.3
Startup with an external 0(4)-20 mA current signal
The conversion is done internally without electrical isolation. A potential
separation is possible only with a external transformer module.
14.
Connect the drive with the eight colored wires to the terminal box S-G05.
The colors of the corresponding wire connections are described in the
table 26.
15.
Bring the potentiometer knob to the zero position by turning it clockwise to
the limit stop.
16.
Put the DIP-switch to »0(4)…20 mA« position.
17.
Connect the external current source to the screw clamps »AnalogIn« and
»GND« to the S-G05. (see figure 14).
