Control Wiring; Control Terminal Types - Danfoss VLT HVAC Drive FC 102 Instruction Manual

Electrical Installation

4.8 Control Wiring

•
Isolate control wiring from high power
components in the adjustable frequency drive.
•
When the adjustable frequency drive is
connected to a thermistor, ensure that the
thermistor control wiring is shielded and
4 4
reinforced/double insulated. A 24 V DC supply
voltage is recommended.

4.8.1 Control Terminal Types

Figure 4.11 and Figure 4.12 show the removable adjustable
frequency drive connectors. Terminal functions and default
settings are summarized in Table 4.2.
Figure 4.11 Control Terminal Locations
Figure 4.12 Terminal Numbers
•
Connector 1 provides four programmable digital
inputs terminals, two 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 two analog inputs, one
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
18
VLT
4
1
1
12 13 18 19 27 29 32 33 20 37
2 3
61 68 69 39 42 50 53 54 55
Danfoss A/S © 03/2015 All rights reserved.
®
HVAC Drive FC 102
Terminal
12, 13
18
19
32
33
27
29
20
37
39
42
50
53
54
55
61
68 (+)
69 (-)
Terminal description
Parameter Default Description
setting
Digital Inputs/Outputs
- +24 V DC 24 V DC supply voltage
for digital inputs and
external transducers.
Maximum output
current 200 mA for all
24 V loads.
5-10 [8] Start Digital inputs.
5-11 [0] No
operation
5-14 [0] No
operation
5-15 [0] No
operation
5-12 [2] Coast For digital input or
inverse output. Default setting
is input.
5-13 [14] JOG
- Common for digital
inputs and 0 V
potential for 24 V
supply.
- Safe Torque Safe input (optional).
Off (STO) Used for STO.
Analog Inputs/Outputs
- Common for analog
output.
6-50 Speed 0 - Programmable analog
High Limit output. 0–20 mA or
4–20 mA at a maximum
of 500 Ω
- +10 V DC 10 V DC analog supply
voltage for potenti-
ometer or thermistor.
15 mA maximum
6-1 Reference Analog input. For
voltage or current.
6-2 Feedback
Switches A53 and A54
select mA or V.
- Common for analog
input.
Serial Communication
- Integrated RC filter for
cable shield. ONLY for
connecting the shield
in the event of EMC
problems.
8-3 RS-485 Interface. A
control card switch is
8-3
provided for
termination resistance.
MG11AK22