Analog inputs
Number of analog inputs
2
Terminal number
53, 54
Modes
Voltage or current
Mode select
Switches A53 and A54
Voltage mode
Switch A53/A54=(U)
Voltage level
0 V to 10 V (scaleable)
Input resistance, R
i
approx. 10 kΩ
Max. voltage
±20 V
Current mode
Switch A53/A54=(I)
Current level
0/4 to 20 mA (scaleable)
Input resistance, R
i
approx. 200 Ω
Max. current
30 mA
Resolution for analog inputs
10 bit (+sign)
Accuracy of analog inputs
Max. error 0.5% of full scale
Bandwidth
100 Hz
The analog inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
Mains
Functional
isolation
PELV isolation
Motor
DC-Bus
High
voltage
Control
+24V
RS485
18
37
130BA117.10
Illustration 11.1 PELV Isolation
Pulse inputs
Programmable pulse inputs
2
Terminal number pulse
29, 33
Max. frequency at terminal, 29, 33
110 kHz (Push-pull driven)
Max. frequency at terminal, 29, 33
5 kHz (open collector)
Min. frequency at terminal 29, 33
4 Hz
Voltage level
see
Maximum voltage on input
28 V DC
Input resistance, R
i
approx. 4 k
Ω
Pulse input accuracy (0.1-1 kHz)
Max. error: 0.1% of full scale
Analog output
Number of programmable analog outputs
1
Terminal number
42
Current range at analog output
0/4-20 mA
Max. resistor load to common at analog output
500
Ω
Accuracy on analog output
Max. error: 0.8% of full scale
Resolution on analog output
8 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 seated from other central circuits and galvanically isolated from the
supply voltage (PELV).
Specifications
Operating Instructions
MG16J202
Danfoss A/S © Rev. 05/2014 All rights reserved.
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11
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Summary of Contents for VLT FC 103
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