Danfoss VLT AutomationDrive Design Manual page 88

FC 300 Selection
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 terminals.
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 - 1kHz)
Encoder input accuracy (1 - 11 kHz)
The pulse and encoder inputs (terminals 29, 32, 33) are galvanically isolated from the supply voltage (PELV) and other high-
voltage terminals.
1) FC 302 only
2)
Pulse inputs are 29 and 33
3)
Encoder inputs: 32 = A, and 33 = B
Analog output:
Number of programmable analog outputs
Terminal number
Current range at analog output
Max. load GND - analog output
Accuracy on analog output
Resolution on analog output
The analogue output is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
Control card, RS-485 serial communication:
Terminal number
Terminal number 61
The RS-485 serial communication circuit is functionally separated from other central circuits and galvanically isolated from the
supply voltage (PELV).
FC 300 Design Guide
PELV isolation
+24V
Control
18
High
voltage
37
Functional
isolation
RS485
®
MG.33.BD.02 - VLT is a registered Danfoss trademark
Switch S201/switch S202 = OFF (U)
FC 301: 0 to + 10/ FC 302: -10 to +10V (scaleable)
Switch S201/switch S202 = ON (I)
0/4 to 20 mA (scaleable)
Max. error 0.5% of full scale
FC 301: 20 Hz/ FC 302: 100 Hz
Mains
Motor
DC-Bus
110kHz (Push-pull driven)
5kHz (open collector)
see section on Digital input
Max. error: 0.1% of full scale
Max. error: 0.05 % of full scale
Max. error: 0.5% of full scale
68 (P,TX+, RX+), 69 (N,TX-, RX-)
Common for terminals 68 and 69
approx. 10 kΩ
± 20V
approx. 200 Ω
30 mA
4
10 bit (+ sign)
2/1
1) 2) 3) 3)
29 , 33 / 32 , 33
4Hz
28V DC
approx. 4kΩ
1
42
0/4 - 20mA
500Ω
12 bit
87
4