VLT
®
2800 Series
Control card, analog output:
Number of programmable analog outputs ............................................................................................................ 1
Terminal number ................................................................................................................................................ 42
Current range at analog output .......................................................................................................... 0/4 - 20 mA
Max. load to common at analog output ...................................................................................................... 500
Accuracy on analog output ..................................................................................... Max. error: 1.5 % of full scale
Resolution on analog output .......................................................................................................................... 10 bit
The analog output is galvanically isolated from the supply voltage (PELV) and other high-
voltage terminals. See section entitled Galvanic Isolation.
Control card, 24 V DC output:
Terminal number ................................................................................................................................................ 12
Max. load .................................................................................................................................................. 130 mA
The 24 V DC supply is galvanically isolated from the supply voltage (PELV) , but has the same potential
as the analogue and digital inputs and outputs. See section entitled Galvanic Isolation.
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. See section entitled Galvanic Isolation.
Control card, RS 485 serial communication:
Terminal number ....................................................................................................... 68 (TX+, RX+), 69 (TX-, RX-)
Terminal number 67 ...................................................................................................................................... + 5 V
Terminal number 70 ...................................................................................
Common for terminals 67, 68 and 69
Full galvanic isolation. See section entitled Galvanic Isolation.
For DeviceNet units, see VLT 2800 DeviceNet manual, MG.90.BX.YY.
Relay outputs:
1)
Number of programmable relay outputs ............................................................................................................... 1
Terminal number, control card ............................................................................................ 1-3 (break), 1-2 (make)
Max. terminal load (AC1) on 1-3, 1-2, control card ......................................................
250 V AC, 2 A, 500 V AC
Max. terminal load (DC1 (IEC 947)) on 1-3, 1-2, control card .........................
25 V DC, 2 A /50 V DC, 1A, 50W
Min. terminal load (AC/DC) on 1-3, 1-2, control card ....................................
24 V DC 10 mA, 24 V AC 100 mA
The relay contact is separated from the rest of the circuit by strengthened isolation.
See section entitled Galvanic Isolation.
1) Rated values for up to 300,000 operations. At inductive loads the number of operations are reduced by
50%, alternatively the current can be reduced by 50%, thus the 300,000 operations are maintained.
Cable lengths and cross sections:
Max. motor cable length, screened/armoured cable ....................................................................................
40 m
Max. motor cable length, unscreened/unarmoured cable ............................................................................
75 m
Max. motor cable length, screened/armoured cable and motor coil ........................................................... 100 m
Max. motor cable length, unscreened/unarmoured cable and motor coil
.................................................. 200 m
Max. motor cable length, screened/armoured cable and RFI/1B filter
............................................ 200 V, 100 m
Max. motor cable length, screened/armoured cable and RFI/1B filter
.............................................. 400 V, 25 m
Max. motor cable length, screened/armoured cable and RFI 1B/LC filter ......................................... 400 V, 25 m
Max.
cross section to motor, see next section.
Max. cross section to control wires, rigid wire ................................................
1.5 mm
2
/16 AWG (2 x 0.75 mm
2
)
Max. cross section to control cables, flexible cable ....................................................................
1 mm
2
/18 AWG
MG.28.E9.02 - VLT is a registered Danfoss trademark
148