VLT
®
2800 Series
Control card, analog output:
Number of programm able analog outputs ............................................................................................................ 1
Terminal number ................................................................................................................................................ 42
Current range at analog output .......................................................................................................... 0/4 - 20 mA
Max. load to common at a nalog output ...................................................................................................... 500
Accuracy on analog output ..................................................................................... Max. error: 1.5 % of full scale
Reso lution 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 D C supply is g alvanica lly isolated from the supply voltage (PELV) and other high-
voltage terminals. See section entitled Galvanic Isolation.
Control card, RS 485 serial communicat ion:
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 DeviceNe t units, see VLT 2800 DeviceNet manual, MG.90.BX.YY.
Relay outputs:
1)
Number of programm able relay outputs ............................................................................................................... 1
Terminal number, control card ............................................................................................ 1-3 (bre ak), 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 loa d ( A C/D C) 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 induct ive loads t he 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 c
able .............. .............................................................. 75 m
Max. motor cable length, screened/armoured cable and motor coil ........................................................... 100 m
Max. motor cable length, unscreened/una rmoure d cable and motor coil .................................................. 200 m
Max. motor cable length, screened/armoured cab
le 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, s cree ned/armoured cable and RFI 1B/LC filter ......................................... 4 0 0 V, 25 m
Max. cros s section to m otor, see next section.
Max. cross section to co ntrol wires, rigid w ire ................................................ 1.5 mm
2
/16AWG(2x0.75mm
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