Danfoss FC 300 Design Manual page 55

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 18, 29, 32, 33
Max. frequency at terminal 18, 29, 32, 33
Min. frequency at terminal 18, 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)
32 (A), 33 (B) and 18 (Z)
The pulse and encoder inputs (terminals 18, 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.B7.02 - 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
1)
29, 33 / 18, 32, 33
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
2) 3)
4 Hz
28 V DC
1
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