Input resistance, R
i
approx. 4 k
Ω
All digital inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
1) Terminals 27 and 29 can also be programmed as output.
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 + 10V (scaleable)
Input resistance, R
i
approx. 10 k
Ω
Max. voltage
±
20V
Current mode
Switch S201/switch S202 = ON (I)
Current level
0/4 to 20mA (scaleable)
Input resistance, R
i
approx. 200
Ω
Max. current
30mA
Resolution for analog inputs
10 bit (+ sign)
Accuracy of analog inputs
Max. error 0.5% of full scale
Bandwidth
200Hz
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
Figure 8.1
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
5kHz (open collector)
Min. frequency at terminal 29, 33
4Hz
Voltage level
see section on Digital input
Maximum voltage on input
28V DC
Input resistance, R
i
approx. 4k
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
0/4–20mA
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.
General Specifications and ...
VLT
®
HVAC Drive Design Guide
8-18
MG11BB22 - VLT
®
is a registered Danfoss trademark
8
8
