Analog Inputs; Pulse/Encoder Inputs - Danfoss VLT AutomationDrive FC 301 Operating Manual

VLT® AutomationDrive FC 301/FC 302
Operating Guide

8.6.3 Analog Inputs

Number of analog inputs
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 20: PELV Isolation

8.6.4 Pulse/Encoder Inputs

Programmable pulse/encoder inputs
Terminal number pulse/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)
FC 302 only.
1
2 Pulse inputs are 29 and 33.
Encoder inputs: 32=A, 33=B.
3
The pulse and encoder inputs (terminals 29, 32, 33) are galvanically isolated from the supply voltage (PELV) and other high-voltage
terminals.
Danfoss A/S © 2021.01
PELV isolation
Mains
High
Motor
voltage
DC-bus
Specifications
Voltage or current
Switch S201 and switch S202
Switch S201/switch S202 = OFF (U)
-10 V to +10 V (scaleable)
Approximately 10 kΩ
Switch S201/S202 = ON (I)
0/4 to 20 mA (scaleable)
Approximately 200 Ω
10 bit (+ sign)
Maximum error 0.5% of full scale
29 , 33
(1) (2)
110 kHz (Push-pull driven)
5 kHz (Open collector)
See 8.6.1 Digital
Approximately 4 kΩ
Maximum error: 0.1% of full scale
Maximum error: 0.05% of full scale
AQ267037727118en-000101 / 130R0300 | 73
2
53, 54
±20 V
30 mA
100 Hz
2/1
/32 , 33
(3) (3)
4 Hz
Inputs.
28 V DC