Pulse/Encoder Inputs - Danfoss VLT FC 103 Operating Manual

Operating Guide | VLT® Refrigeration Drive FC 103
Terminal number
Modes
Mode select
Voltage mode
Voltage level
Input resistance, R
i
Maximum voltage
Current mode
Current level
Input resistance, R
i
Maximum current
Resolution for analog inputs
Accuracy of analog inputs
Bandwidth
The analog inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
+24 V
Control
18
37
Functional
isolation
RS485
Illustration 51: PELV Isolation

9.6.4 Pulse/encoder Inputs

Programmable pulse/encoder inputs
Terminal number (pulse)
Terminal number (encoder)
Maximum frequency at terminals 29, 32, 33
Maximum frequency at terminals 29, 32, 33
Maximum frequency at terminals 29, 32, 33
Voltage level
Maximum voltage on input
Input resistance, R
i
Pulse input accuracy (0.1–1 kHz)
Encoder input accuracy (1–11 kHz)
1
FC 302 only.
2
Encoder inputs: 32=A and 33=B.
Danfoss A/S © 2020.01
PELV isolation
Mains
High
Motor
voltage
DC-bus
Specifications
53 (201), 54 (202)
Voltage or current
Switch A53 (S201) and switch A54 (S202)
Switch A53 (S201)/A54 (S202) = OFF (U)
-10 V to +10 V (scaleable)
Approximately 10 kΩ
Switch A53 (S201)/A54 (S202) = ON (I)
0/4 to 20 mA (scaleable)
Approximately 200 Ω
10 bit (+ sign)
Maximum error 0.5% of full scale
110 kHz (Push-pull driven)
5 kHz (Open collector)
See Digital Inputs.
Approximately 4 kΩ
Maximum error: 0.1% of full scale
Maximum error: 0.05% of full scale
AQ275652766279en-000101 / 130R0707| 135
±20 V
30 mA
100 Hz
2/1
29 (1) , 33
32, 33 (2)
4 Hz
28 V DC