Danfoss VLT AutomationDrive FC 301 Instruction Manual page 68

Specifications
Analog inputs
Number of analog inputs
Terminal number
Modes
Mode select
Voltage mode
Voltage level
Input resistance, R
Max. voltage
Current mode
Current level
Input resistance, R
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.
8 8
Figure 8.1 PELV Isolation
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
Pulse input accuracy (0.1–1 kHz)
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
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Instruction Manual
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+24V
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Functional
isolation
RS485
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Danfoss A/S © Rev. 2014-02-10 All rights reserved.
PELV isolation
Control
High
voltage
Voltage or current
Switch S201 and switch S202
Switch S201/switch S202 = OFF (U)
-10 to +10 V (scaleable)
Switch S201/switch S202 = ON (I)
0/4 to 20 mA (scaleable)
Max. error 0.5% of full scale
Mains
Motor
DC-Bus
1)
29 , 33
110 kHz (push-pull driven)
5 kHz (open collector)
see section on Digital input
Max. error: 0.1% of full scale
Max. error: 0.05% of full scale
2
53, 54
approx. 10 kΩ
± 20 V
approx. 200 Ω
30 mA
10 bit (+ sign)
100 Hz
2/1
2) 3) 3)
/ 32 , 33
4 Hz
28 V DC
approx. 4 kΩ
MG33AN22