Analog inputs:
Number of analog inputs 2
Terminal number 53, 54
Modes Voltage or current
Mode select Switch S201 and switch S202
Voltage mode Switch S201/switch S202 = OFF (U)
Voltage level : 0 to + 10 V (scaleable)
Input resistance, R
i
approx. 10 kΩ
Max. voltage ± 20 V
Current mode Switch S201/switch S202 = ON (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 : 200 Hz
The analog inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
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 section on Digital input
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
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).
8 General Specifications
VLT HVAC Low Harmonic Drive Operating In-
structions
162 MG.16.A1.02 - VLT
®
is a registered Danfoss trademark
8
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