FC 300 Design Guide
Analog inputs:
Number of analog inputs
Terminal number
Modes
Mode select
Voltage mode
Voltage level
Input resistance, R
i
Max. voltage
Current mode
Current level
Input resistance, R
i
Max. 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 ter-
minals.
Pulse/encoder inputs:
Programmable pulse/encoder inputs
Terminal number pulse/encoder
Max. frequency at terminal 29, 32, 33
Max. frequency at terminal 29, 32, 33
Min. frequency at terminal 29, 32, 33
Voltage level
Maximum voltage on input
Input resistance, R
i
Pulse input accuracy (0.1 - 1 kHz)
Encoder input accuracy (1 - 110 kHz)
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
FC 300 Selection
FC 301: 0 to + 10/ FC 302: -10 to +10 V (scaleable)
3)
3)
3)
®
MG.33.B8.02 - VLT
is a registered Danfoss trademark
Voltage or current
Switch S201 and switch S202
Switch S201/switch S202 = OFF (U)
approx. 10 kΩ
Switch S201/switch S202 = ON (I)
0/4 to 20 mA (scaleable)
approx. 200 Ω
10 bit (+ sign)
Max. error 0.5% of full scale
FC 301: 20 Hz/ FC 302: 100 Hz
29
3
, 33
1)
110 kHz (Push-pull driven)
5 kHz (open collector)
see section on Digital input
approx. 4 kΩ
Max. error: 0.1% of full scale
Max. error: 0.05 % of full scale
2
53, 54
± 20 V
30 mA
2/1
/ 32
2
, 33
2) 3)
4 Hz
28 V DC
61
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