Danfoss VLT AutomationDrive FC 302 Operating Manual page 44

Electrical Installation
5.8.4 Wiring to Control Terminals
The control terminals are located near the LCP. The control
terminal connectors can be unplugged from the drive for
convenience when wiring, as shown in Illustration 5.17.
Either solid or flexible wire can be connected to the
control terminals. Use the following procedures to connect
or disconnect the control wires.
NOTICE
Minimize interference by keeping control wires as short
5 5
as possible and separate from high-power cables.
Connecting wire to control terminals
1. Strip 10 mm (0.4 in) of the outer plastic layer
from the end of the wire.
2. Insert the control wire into the terminal.
•
•
3. Pull gently on the wire to ensure that the contact
is firmly established and not loose. Loose control
wiring can be the source of equipment faults or
reduced performance.
Illustration 5.20 Connecting Solid Control Wires
42
VLT® AutomationDrive FC 302
For a solid wire, push the bare wire into
the contact. See Illustration 5.20.
For a flexible wire, open the contact by
inserting a small screwdriver into the
slot between the terminal holes and
push the screwdriver inward. See
Illustration 5.21 Then, insert the stripped
wire into the contact and remove the
screwdriver.
12 13 18 19 27 29 32 33
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12 13 18 19 27 29 32 33
Illustration 5.21 Connecting Flexible Control Wires
Disconnecting wires from the control terminals
1. To open the contact, insert a small screwdriver
into the slot between the terminal holes and
push the screwdriver inward.
2. Pull gently on the wire to free it from the control
terminal contact.
See chapter 9.5 Cable Specifications for control terminal
wiring sizes and chapter 7 Wiring Configuration Examples for
typical control wiring connections.
5.8.5 Enabling Motor Operation
(Terminal 27)
A jumper wire is required between terminal 12 (or 13) and
terminal 27 for the drive to operate when using factory
default programming values.
•
Digital input terminal 27 is designed to receive
24 V DC external interlock command.
•
When no interlock device is used, wire a jumper
between control terminal 12 (recommended) or
13 to terminal 27. This wire provides an internal
24 V signal on terminal 27.
•
When the status line at the bottom of the LCP
reads AUTO REMOTE COAST, the unit is ready to
operate, but is missing an input signal on
terminal 27.
•
When factory-installed optional equipment is
wired to terminal 27, do not remove that wiring.
NOTICE
The drive cannot operate without a signal on terminal
27, unless terminal 27 is reprogrammed using
parameter 5-12 Terminal 27 Digital Input.
MG38A202