Terminal No. Function
53, 54
Analog input. Selectable for voltage (0 to
±
10 V)
or current (0- or 4 to
±
20 mA). Closed is for
current and open is for voltage. Switches are
located on the frequency converter control card.
See
55
Common for analog inputs.
61
Common for serial communication (RS485
interface). See
68 (+), 69 (-) RS485 interface. When the frequency converter is
connected to an RS485 serial communication bus,
a switch on thecontrol card is provided for
termination resistance. Set the switch to ON for
termination and OFF for no termination.
62
RxD/TxD –P (red cable) for Profibus. See dedicated
literature (MCA 101) for details.
63
RxD/TxD –N (green cable) for Profibus.
66
0 V for Profibus.
67
+5 V for Profibus.
B01-B12
B-option. See dedicated literature for details.
G, R, V, N, P
Connection of LCP.
Table 2.2 Function of Terminals
2.4.6 AC Mains Input Connection
WARNING
IT MAINS OR DELTA-GROUNDED MAINS
Do not connect 400 V frequency converters with RFI-
filters to mains supplies with a voltage between phase
and earth of more than 440 V.
For IT mains and delta-grounded mains, mains voltage
may exceed 440 V between phase and earth.
•
Size wiring based upon the input current of the
frequency converter. See the maximum wire size
in the Input Current and Wire tables in
•
Comply with local and national electrical codes
for cable sizes.
•
Connect 3-phase AC input power wiring to
terminals L1, L2, and L3.
•
Depending on the configuration of the
equipment, connect the input power to the
mains input terminals or the input disconnect.
•
Ground the cable in accordance with grounding
instructions provided in
General Earth (Ground)
Requirements
.
•
All frequency converters can be used with an
isolated input source as well as with ground
reference power lines. When supplied from an
isolated mains source (IT mains or floating delta)
or TT/TN-S mains with a grounded leg (grounded
delta), set
parameter 14-50 RFI Filter
to OFF. When
set to OFF, the internal RFI filter capacitors
between the chassis and the intermediate circuit
are isolated, to avoid damage to the intermediate
circuit and to reduce earth capacity currents in
accordance with IEC 61800-3.
No.
91
92
93
Mains voltage 3x380-480 V
L1
L2
L3
PE
Earth connection
Table 2.3 AC Mains Input Terminals
2.4.7 Motor and Mains Connection with
Service Switch
Illustration 2.16
2.4.8 Brake Resistor
No. 81 (optional
function)
82 (optional
function)
Brake resistor
terminals
R-
R+
Table 2.4 Brake Resistor Terminals
•
The connection cable to the brake resistor must
be screened/armoured. Connect the screen to the
metal cabinet of the frequency converter and to
the metal cabinet of the brake resistor with cable
clamps.
•
Dimension the cross-section of the brake cable to
match the brake torque.
Installation
VLT
®
Decentral Drive FCD 302
20
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MG04F402
2
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