Danfoss VLT AQUA FC 202 Design Guide

Maximum voltage on input
28 V DC
Input resistance, R
i
Approximately 4 kΩ
1
Terminals 27 and 29 can also be programmed as output.
The digital input is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
8.6.2 STO Terminal 37 (Terminal 37 is Fixed PNP Logic)
Voltage level
0–24 V DC
Voltage level, logic 0 PNP
<4 V DC
Voltage level, logic 1 PNP
>20 V DC
Maximum voltage on input
28 V DC
Typical input current at 24 V
50 mA rms
Typical input current at 20 V
60 mA rms
Input capacitance
400 nF
All digital inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
When using a contactor with a DC coil inside in combination with STO, it is important to make a return way for the current from the
coil when turning it o. This can be done by using a freewheel diode (or, alternatively, a 30 V or 50 V MOV for quicker response time)
across the coil. Typical contactors can be bought with this diode.
8.6.3 Analog Inputs
Number of analog inputs
2
Terminal number
53, 54
Modes
Voltage or current
Mode select
Switch S201 and switch S202
Voltage mode
Switch S201/switch S202 = OFF (U)
Voltage level
0–10 V (scaleable)
Input resistance, R
i
Approximately 10 kΩ
Maximum voltage
±20 V
Current mode
Switch S201/S202 = ON (I)
Current level
0/4–20 mA (scaleable)
Input resistance, R
i
Approximately 200 Ω
Maximum current
30 mA
Resolution for analog inputs
10 bit (+ sign)
Accuracy of analog inputs
Maximum error 0.5% of full scale
Bandwidth
200 Hz
The analog inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
Mains
Functional
isolation
PELV isolation
Motor
DC-bus
High
voltage
Control
+24 V
RS485
18
37
e30ba117.11
Illustration 53: PELV Isolation
AJ300847815559en-000101 / 130R033792 | Danfoss A/S © 2020.09
Specications
VLT® AQUA Drive FC 202
Design Guide

Danfoss VLT AQUA FC 202 Specifications

General

Brand	Danfoss
Model	VLT AQUA FC 202
Category	DC Drives
Language	English