Danfoss vlt series Operating Instructions Manual page 75

General Specifications
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.
Illustration 5.1 PELV Isolation
Pulse/encoder inputs
Programmable pulse/encoder inputs
Terminal number pulse/encoder
Maximum frequency at terminal 29, 32, 33
Maximum frequency at terminal 29, 32, 33
Minimum 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 (1–11 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, 33=B.
Digital output
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
1) Terminal 27 and 29 can also be programmed as input.
The digital output is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
Analog output
Number of programmable analog outputs
Terminal number
Current range at analog output
Maximum load GND - analog output less than
Accuracy on analog output
Resolution on analog output
The analog output is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
MG34Q402
Operating Instructions
PELV isolation
+24V
Control
18
High
voltage
37
Functional
isolation
RS485
Danfoss A/S © 04/2016 All rights reserved.
Maximum error 0.5% of full scale
Mains
Motor
DC-Bus
See section 5-1* Digital Inputs in the programming guide.
Maximum error: 0.1% of full scale
Maximum error: 0.05% of full scale
Maximum error: 0.1% of full scale
Maximum error: 0.5% of full scale
10 bit (+ sign)
100 Hz
2/1
1) 2) 3) 3)
29 , 33 /32 , 33
110 kHz (Push-pull driven)
5 kHz (Open collector)
4 Hz
28 V DC
Approximately 4 kΩ
2
1)
27, 29
0–24 V
40 mA
1 kΩ
10 nF
0 Hz
32 kHz
12 bit
1
42
0/4 to 20 mA
500 Ω
12 bit
73
5 5