Danfoss VLT HVACDrive Instruction Manual page 169

VLT ® HVAC Drive Instruction Manual
Analog inputs:
Number of analog inputs
Terminal number
Modes
Mode select
Voltage mode
Voltage level
Input resistance, R
i
Max. voltage
Current mode
Current level
Input resistance, R
i
Max. current
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.
Pulse inputs:
Programmable pulse inputs
Terminal number pulse
Max. frequency at terminal, 29, 33
Max. frequency at terminal, 29, 33
Min. frequency at terminal 29, 33
Voltage level
Maximum voltage on input
Input resistance, R
i
Pulse input accuracy (0.1–1 kHz)
Analog output:
Number of programmable analog outputs
Terminal number
Current range at analog output
Max. resistor load to common at analog output
Accuracy on analog output
Resolution on analog output
The analog output is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
Control card, RS-485 serial communication:
Terminal number
Terminal number 61
The RS-485 serial communication circuit is functionally seated from other central circuits and galvanically isolated from the supply voltage (PELV).
MG.11.AB.22 - VLT ® is a registered Danfoss trademark
9 Specifications
2
53, 54
Voltage or current
Switch S201 and switch S202
Switch S201/switch S202 = OFF (U)
: 0–+10 V (scaleable)
approx. 10 kΩ
± 20 V
Switch S201/switch S202 = ON (I)
0/4 to 20 mA (scaleable)
approx. 200 Ω
30 mA
10 bit (+ sign)
Max. error 0.5% of full scale
: 200 Hz
2
29, 33
110 kHz (push-pull driven)
5 kHz (open collector)
4 Hz
see section on Digital input
28 V DC
approx. 4 kΩ
Max. error: 0.1% of full scale
1
42
0/4–20 mA
500 Ω
Max. error: 0.8% of full scale
8 bit
68 (P,TX+, RX+), 69 (N,TX-, RX-)
Common for terminals 68 and 69
9
9-7