Pulse/Encoder Inputs; Digital Outputs; Analog Output - Danfoss VLT AutomationDrive EZ FC 321 Installation Manual

VLT®AutomationDrive EZ FC 321
Installation Guide
+24 V
Control
18
37
Functional
isolation
RS485
Illustration 12: PELV Isolation

5.3.4 Pulse/Encoder Inputs

Programmable pulse/encoder inputs
Terminal number pulse/encoder
Maximum frequency at terminals 29, 32, 33
Maximum frequency at terminals 29, 32, 33
Maximum frequency at terminals 29, 32, 33
Voltage level
Maximum voltage on input
Input resistance, R
i
Pulse input accuracy (0.1–1 kHz)
Encoder input accuracy (1–11 kHz)
Pulse inputs are 29 and 33.
1
2 Encoder inputs: 32=A, 33=B.
The pulse and encoder inputs (terminals 29, 32, 33) are galvanically isolated from the supply voltage (PELV) and other high-voltage
terminals.

5.3.5 Digital Outputs

Programmable digital/pulse outputs
Terminal number
Voltage level at digital/frequency output
Maximum output current (sink or source)
Maximum load at frequency output
Maximum capacitive load at frequency output
Minimum output frequency at frequency output
Maximum output frequency at frequency output
Accuracy of frequency output
Resolution of frequency outputs
Terminals 27 and 29 can also be programmed as input.
1
The digital output is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.

5.3.6 Analog Output

Number of programmable outputs
Terminal number
Current range at analog output
Maximum load GND - analog output less than
Accuracy on analog output
32 | Danfoss A/S © 2021.05
PELV isolation
Mains
High
Motor
voltage
DC-bus
Specifications
29, 33 /32
(1)
110 kHz (Push-pull driven)
5 kHz (Open collector)
See 5.3.1 Digital
28 V DC
Approximately 4 kΩ
Maximum error: 0.1% of full scale
Maximum error: 0.05% of full scale
Maximum error: 0.1% of full scale
0/4 to 20 mA
Maximum error: 0.5% of full scale
AN354546796134en-000201 / 130R0954
2/1
, 33
(2) (2)
4 Hz
Inputs.
2
27, 29
(1)
0–24 V
40 mA
1 kΩ
10 nF
0 Hz
32 kHz
12 bit
1
42
500 Ω