Danfoss VLT FC 103 Instruction Manual

Mains
Functional
isolation
PELV isolation
Motor
DC-Bus
High
voltage
Control
+24V
RS485
18
37
130BA117.10
Figure 10.1 PELV Isolation of Analog Inputs
Pulse inputs
Programmable pulse 2/1
Terminal number pulse 29, 33
1)
/32
2)
, 33
2)
Max. frequency at terminal 29, 32, 33 110 kHz (push-pull driven)
Max. frequency at terminal 29, 32, 33 5 kHz (open collector)
Min. frequency at terminal 29, 32, 33 4 Hz
Voltage level See chapter 10.2.1 Digital Inputs
Maximum voltage on input 28 V DC
Input resistance, R
i
Approx. 4 kΩ
Pulse input accuracy (0.1–1 kHz) Max. error: 0.1% of full scale
Encoder input accuracy (1–11 kHz) Max. error: 0.05% of full scale
The pulse and encoder inputs (terminals 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
Analog output
Number of programmable analog outputs 1
Terminal number 42
Current range at analog output 0/4–20 mA
Max. load GND - analog output 500 Ω
Accuracy on analog output Max. error: 0.5% of full scale
Resolution on analog output 12 bit
The analog output is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
Control card, RS-485 serial communication
Terminal number 68 (P,TX+, RX+), 69 (N,TX-, RX-)
Terminal number 61 Common for terminals 68 and 69
The RS-485 serial communication circuit is functionally separated from other central circuits and galvanically isolated from the
supply voltage (PELV).
Specifications Instruction Manual
MG16E222 Danfoss A/S © Rev. 2014-02-10 All rights reserved. 87
10 10

Danfoss VLT FC 103 Specifications

General

Brand	Danfoss
Model	VLT FC 103
Category	DC Drives
Language	English