Vacon 20CP Installation, Technical And Maintenance Manual page 51
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Also See for 20CP:
- User manual (28 pages) ,
- Installation, technical and maintenance manual (106 pages)
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Control unit
When delivered from the factory, the control unit of the AC drive contains the standard control-
ling interface - the control terminals of the control board - unless otherwise specifically or-
dered. In the following pages you will find the arrangement of the control I/O and the relay
terminals, the general wiring diagram and the control signal descriptions.
The control board can be powered externally by connecting an external power source (about
130-150mA at 24VDC are needed to supply the control board without keypad, option board or
other loads) between terminal #6 and GND, see chapter 5.1.2. To ensure that the external sup-
ply works with any configurations we recommend to use an external supply of +24VDC ±10%,
1000mA overcurrent protected.
This voltage is sufficient for parameter setting and for keeping the control unit active. Note
however that the values of the measurements of the main circuit (e.g. DC-link voltage, unit
temperature) are not available when the mains is not connected.
In addition to the internal fan, VACON
power supply connector (see 10 in the Figure 23, Figure 24 and Figure 25) for improved air flow
and system cooling. The power supply also has automatic thermal switching on/off control: it
automatically switches on/off depending on internal cold plate temperature. The electric spec-
ifications for the auxiliary fan power supply are shown in the following table:
Terminals
FAN+
FAN-
Table 22. Electric specifications for the auxiliary fan power supply.
The connector for the auxiliary fan supply is a Micro-Fit 3.0
ible, Single Row, Vertical with PCB Polarizing Peg by Molex (part number 43650-0215). This
connection is echoed in the HMI echo connector. See Figure 23, Figure 24 and Figure 25 for the
location of the connectors and Table 28 for the description of the HMI echo terminal.
To connect the auxiliary fan to VACON
Crimp Housing, Single Row by Molex
more details.
FAN+
Service support: find your nearest Vacon service center at www.vacon.com
®
20 CP frequency converters include an auxiliary fan
MS2
24VDC ±10%
maximum output
current 200mA
GND
®
20 CP drives you will need a Micro-Fit 3.0™ Receptacle
®
(part number 43645-0200). See the picture below for
Figure 26. Micro-Fit 3.0™ Housing.
SIgnals
MS3
24VDC ±10%
maximum output cur-
rent 700mA
GND
TM
Header, Surface Mount Compat-
FAN-
vacon • 48
5
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