Control Terminal Functions - Danfoss VLT HVAC Drive FC100 Service Manual

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Operator Interface and Cont...

2.7 Control Terminal Functions

The following describes the functions of the control terminals. Many of these terminals have multiple functions determined
by parameter settings. Some options provide additional terminals. See illustration below.
Terminal No.
Function
01, 02, 03 and 04, 05, 06
Two Form C output relays. Maximum 240 VAC, 2 A. Minimum 24 VDC, 10 mA or 24 VAC, 100 mA. Can be
used for indicating status and warnings. Physically located on the power card.
12, 13
24 VDC power supply to digital inputs and external transducers. The maximum output current is 200 mA.
18, 19, 27, 29, 32, 33
Digital inputs for controlling the frequency converter. R = 2 kohm. Less than 5 V = logic 0 (open). Greater
than 10 V = logic 1 (closed). Terminals 27 and 29 are programmable as digital/pulse outputs.
20
Common for digital inputs.
37
0–24 VDC input for safety stop (some units).
39
Common for analog and digital outputs.
42
Analog and digital outputs for indicating values such as frequency, reference, current and torque. The
analog signal is 0/4 to 20 mA at a maximum of 500 Ω. The digital signal is 24 VDC at a minimum of 500
Ω.
50
10 VDC, 15 mA maximum analog supply voltage for potentiometer or thermistor.
53, 54
Selectable for 0 to 10 VDC voltage input, R = 10 kΩ, or analog signals 0/4 to 20 mA at a maximum of 200
Ω. Used for reference or feedback signals. A thermistor can be connected here.
55
Common for terminals 53 and 54.
61
RS-485 common.
68, 69
RS-485 interface and serial communication.
Term
18
19
Par.
5-10
5-11
Table 2.2 Control Terminals and Associated Parameter
Control terminals must be programmed. Each terminal has
specific functions it is capable of performing and a
numbered parameter associated with it. The setting
selected in the parameter enables the function of the
terminal. See the Operating Instructions for details.
High Power Service Manual for Modular F Frame Drives
27
29
32
33
5-12
5-13
5-14
5-15
®
MG90K202 - VLT
is a registered Danfoss trademark
37
53
54
42
5-19
6-1*
6-2*
6-5*
L1
L2
L3
N
PE
F1
12
91 92 93 95
37
L1 L2
L3
PE
18
50
53
55
39
20
U
V
W PE
32
33
96 97
98
99
M
24 Vdc
3
Illustration 2.4 Control Terminals Electrical Diagram, F-frame
2
1-3
4-6
5-4*
5-4*
45
2

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