Cable lengths and cross sections:
Max. motor cable length, screened/armoured
VLT AQUA Drive: 150m
Max. motor cable length, unscreened/unarmoured
VLT AQUA Drive: 300m
Max. cross section to motor, mains, load sharing and brake *
Maximum cross section to control terminals, rigid wire
1.5mm
2
/16 AWG (2 x 0.75mm
2
)
Maximum cross section to control terminals, flexible cable
1mm
2
/18AWG
Maximum cross section to control terminals, cable with enclosed core
0.5mm
2
/20AWG
Minimum cross section to control terminals
0.25mm
2
* See Mains Supply tables for more information!
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).
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
Illustration 10.1
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.
Specifications
VLT
®
AQUA Drive
Operating Instructions
76
MG.20.M8.02 - VLT
®
is a registered Danfoss trademark
10
10