Danfoss VLT FC 103 Operating Manual page 48

Electrical Installation
5.8.9 Wiring the Auxiliary Contacts to the
Disconnect
The disconnect is an option that is installed at the factory.
The auxiliary contacts, which are signal accessories used
with the disconnect, are not installed at the factory to
allow more flexibility during installation. The contacts snap
into place without the need for tools.
Contacts must be installed in specific locations on the
5 5
disconnect depending upon their functions. Refer to the
datasheet included in the accessory bag that comes with
the drive.
Specifications
•
U /[V]: 690
i
•
U
imp
•
Pollution degree: 3
•
I /[A]: 16
th
•
Cable size: 1...2x0.75...2.5 mm
•
Maximum fuse: 16 A/gG
•
NEMA: A600, R300, wire size: 18–14 AWG, 1(2)
5.8.10 Wiring the Brake Resistor
Temperature Switch
The brake resistor terminal block is located on the power
card and allows for the connection of an external brake
resistor temperature switch. The switch can be configured
as normally closed or normally open. If the input changes,
a signal trips the drive and shows alarm 27, Brake chopper
fault on the LCP display. At the same time, the drive stops
braking and the motor coasts.
1. Locate the brake resistor terminal block (terminals
104–106) on the power card. See Illustration 3.3.
2. Remove the M3 screws that hold the jumper to
the power card.
3. Remove the jumper and wire the brake resistor
temperature switch in 1 of the following configu-
rations:
4. Secure the switch wires with the M3 screws.
Torque to 0.5-0.6 Nm (5 in-lb).
46
/[kV]: 4
2
3a Normally closed. Connect to terminals
104 and 106.
3b Normally open. Connect to terminals
104 and 105.
Danfoss A/S © 04/2018 All rights reserved.
VLT® Refrigeration Drive FC 103
5.8.11 Selecting Voltage/Current Input
The analog input terminals 53 and 54 allow setting of
input signal to voltage (0–10 V) or current (0/4–20 mA).
Default parameter setting:
•
•
NOTICE
Disconnect power to the drive before changing switch
positions.
1.
2.
3.
Illustration 5.23 Location of Terminal 53 and 54 Switches
Signal
Terminal 53: Speed reference signal in open loop
(see parameter 16-61 Terminal 53 Switch Setting).
Terminal 54: Feedback signal in closed loop (see
parameter 16-63 Terminal 54 Switch Setting).
Remove the LCP (local control panel).
See chapter 6.3 LCP Menu.
Remove any optional equipment covering the
switches.
Set switches A53 and A54 to select the signal
type (U = voltage, I = current).
MG16P222