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
FC 301: 0 to + 10/ FC 302: -10 to +10 V (scalable)
Input resistance, R
i
approx. 10 k
Ω
Max. voltage
± 20 V
Current mode
Switch S201/switch S202 = ON (I)
Current level
0/4 to 20 mA (scalable)
Input resistance, R
i
approx. 200
Ω
Max. current
30 mA
Resolution for analog inputs
10 bit (+ sign)
Accuracy of analog inputs
Max. error 0.5% of full scale
Bandwidth
FC 301: 20 Hz/ FC 302: 100 Hz
The analog inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage ter-
minals.
Pulse/encoder inputs:
Programmable pulse/encoder inputs
2/1
Terminal number pulse/encoder
29
3
, 33
1)
/ 32
2
, 33
2) 3)
Max. frequency at terminal 29, 32, 33
3)
110 kHz (push-pull driven)
Max. frequency at terminal 29, 32, 33
3)
5 kHz (open collector)
Min. frequency at terminal 29, 32, 33
3)
4 Hz
Voltage level
see section on Digital input
Maximum voltage on input
28 V DC
Input resistance, R
i
approx. 4 k
Ω
Pulse input accuracy (0.1 - 1 kHz)
Max. error: 0.1% of full scale
Encoder input accuracy (1 - 110 kHz)
Max. error: 0.05 % of full scale
The pulse and encoder inputs (terminals 29, 32, 33) are galvanically isolated from the supply voltage
(PELV) and other high-voltage terminals.
1) Pulse inputs are 29 and 33
2) Encoder inputs: 32 = A, and 33 = B
3) Terminal 29: Only FC 302
VLT
®
AutomationDrive FC 300 Instruction Manual
General
Specifications
MG.33.A8.22 - VLT
®
is a registered Danfoss trademark.
73
