Control Terminal Types - Danfoss VLT Refrigeration Drive FC 103 Operating Instructions Manual

Electrical Installation

4.8.1 Control Terminal Types

Illustration 4.7 and Illustration 4.8 show the removable
frequency converter connectors. Terminal functions and
default settings are summarised in Table 4.2.
Illustration 4.7 Control Terminal Locations
1
12 13 18 19 27 29 32 33 20 37
2 3
61 68 69 39 42 50 53 54 55
Illustration 4.8 Terminal Numbers
•
Connector 1 provides 4 programmable digital
inputs terminals, 2 additional digital terminals
programmable as either input or output, a 24 V
DC terminal supply voltage, and a common for
optional customer supplied 24 V DC voltage.
•
Connector 2 terminals (+)68 and (-)69 are for an
RS-485 serial communication connection
•
Connector 3 provides 2 analog inputs, 1 analog
output, 10 V DC supply voltage, and commons
for the inputs and output
•
Connector 4 is a USB port available for use with
the MCT 10 Set-up Software
MG16E302
Operating Instructions
Terminal
12, 13
4
1
68 (+)
69 (-)
Danfoss A/S © Rev. 2014-02-06 All rights reserved.
Digital Inputs/Outputs
Parameter Default
setting
- +24 V DC
18 5-10 [8] Start
19 5-11 [10] Reversing
32 5-14 [39] Day/Night
Control
33 5-15 [0] No
operation
27 5-12 [2] Coast
inverse
29 5-13 [0] No
operation
20 -
37 - Safe Torque
Off (STO)
Analog Inputs/Outputs
39 -
42 6-50 [100] Output
frequency
50 - +10 V DC
53 6-1* Reference
54 6-2* Feedback
55 -
Serial Communication
61 -
8-3*
8-3*
Description
24 V DC supply
voltage. Maximum
output current is 200
mA total for all 24 V
loads. Useable for
digital inputs and
4
external transducers.
Digital inputs.
Selectable for either
digital input or
output. Default setting
is input.
Common for digital
inputs and 0 V
potential for 24 V
supply.
(Optional) Safe input.
Used for STO
Common for analog
output
Programmable analog
output. The analog
signal is 0-20 mA or
4-20 mA at a
maximum of 500 Ω
10 V DC analog
supply voltage. 15 mA
maximum commonly
used for potenti-
ometer or thermistor.
Analog input.
Selectable for voltage
or current. Switches
A53 and A54 select
mA or V.
Common for analog
input
Integrated RC-Filter
for cable screen. ONLY
for connecting the
screen when experi-
encing EMC problems.
RS-485 Interface. A
control card switch is
provided for
termination resistance.
17
4