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
-10 to +10 V (scaleable)
Input resistance, Ri: approx
10 k
Ω
Max. voltage
± 20 V
Current mode
Switch S201/switch S202 = ON (I)
Current level
0/4 to 20 mA (scaleable)
Input resistance, Ri
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.
Digital Output
Programmable digital/pulse outputs
2
Terminal number
27, 29
1)
Voltage level at digital/frequency output
0-24 V
Max. output current (sink or source)
40 mA
Max. load at frequency output
1 k
Ω
Max. capacitive load at frequency output
10 nF
Minimum output frequency at frequency output
0 Hz
Maximum output frequency at frequency output
32 kHz
Accuracy of frequency output
Max. error: 0.1 % of full scale
Resolution of frequency outputs
12 bit
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
1
Terminal number
42
Current range at analog output
0/4 to 20 mA
Max. load to common at 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, 24 V DC Output
Terminal number
12, 13
Max. load
200 mA
The 24 V DC supply is galvanically isolated from the supply voltage (PELV), but has the same potential as the analog and
digital inputs and outputs.
Control Card, 10 V DC Output
Terminal number
50
Output voltage
10.5 V ± 0.5 V
Max. load
15 mA
The 10 V DC supply 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
General Specifications
Operating Instructions VLT
®
CDS302 and CDS303
158
MG34M302 - VLT
®
is a registered Danfoss trademark/Commercial Compressor
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