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MC18-Micro manual
Electrical Installation
The MC18-Micro controller is standard equipped with 3 connections:
1. Mains power cable.
2. Input cable.
3. Motor cable.
Before switching on the unit for the first time, ensure the mains power voltage being applied is between 80 and 260Vac.
Optional are:
4. Sensor, complete with cable.
5. Alarm flash light, complete with cable.
6. Compressed air solenoid valve complete with cable (for automatic hopper loader).
For more information, please have a look at
APPENDIX B: MC18-Micro Wiring Diagram
Input (start) signal
The MC18-Micro needs an input signal from the production machine in order to operate.
Three different input signals can be used to control the MC18-Micro.
1.) A potential free relay contact: Use the white and brown wire for the potential free contact.
2.) A relay signal up to 30 Volt DC: Relay signals can be used for an extruder that has no tacho signal. In
case of a powered relay signal connect the white wire to +24 VDC and the yellow wire to - side.
To detect a start signal the MC18-Micro needs a minimum voltage of 18VDC.
3.) A tacho signal up to 30 Volt DC: This is used when the MC18-Micro needs to be connected to an
extruder that has a generator that produces a voltage linear to the extruder speed. When using a tacho
generator signal, connect the white and brown wire, connect green to + VDC and yellow to - side of the
generator. See Paragraph 7.6 for information about the configuration of the tacho parameters.
The maximum voltage that can be applied to the MC18-Micro is 30 VDC. The tacho voltage has to be
reduced to 30 VDC if the tacho generator has a higher voltage output than 30 VDC at the maximum
extruder output capacity. See the diagram below.
Rx (
kilo-Ohm
) = (2,684 x (Max. tacho output VDC
–
5))
–
66
If the extruder stops when connected to the metering unit, an isolated signal converter is needed. Contact
your agent or Movacolor for more information.
Input
connection
Resistor (
Rx
)
kOhm
Green wire +
Tacho
generator
EXTRUDER
Yellow wire -
17
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