Danfoss VLT AutomationDrive FC 302 Operating Manual page 46

Electrical Installation
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
5 5
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:
3a
3b
4. Secure the switch wires with the M3 screws.
Torque to 0.5-0.6 Nm (5 in-lb).
5.8.11 Selecting Voltage/Current Input
Signal
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:
•
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).
NOTICE
Disconnect power to the drive before changing switch
positions.
1. Remove the LCP (local control panel).
See chapter 6.3 LCP Menu.
2. Remove any optional equipment covering the
switches.
3. Set switches A53 and A54 to select the signal
type (U = voltage, I = current).
44
VLT® AutomationDrive FC 302
Normally closed. Connect to terminals
104 and 106.
Normally open. Connect to terminals
104 and 105.
Danfoss A/S © 04/2018 All rights reserved.
Illustration 5.23 Location of Terminal 53 and 54 Switches
MG38A202