Danfoss VLT 5000 Series Manuel - Sayfa 6

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Encoder input 2, MK3D (slave):

Terminal designations ................................................................................................... A2, A2, B2, B2, Z2, Z2

Incremental:

Signal level ................................................................................................................................... 5 V differential

Signal type ............................................................................................................................. Linedriver, RS422

Input impedance ...................................................................................................................................... 140 Ω

Maximum frequency ........................................................................................... 220 kHz (at 50 % duty cycle)

Phase displacement between A and B ............................................................................................... 90° ±30°

Absolute:

Signal level ................................................................................................................................... 5 V differential

Signal type .................................................................................................................................................... SSI

Protocol ............................................................................................................................................ Gray code

Data length ............................................................................................................................................... 25 bit

Parity .......................................................................................................................................................... none

Clock frequency ....................................................................................................................... 105 or 262 kHz

Maximum positions per revolution ............................................................................................................. 8192

Maximum number of revolutions ............................................................................................................... 4096

Encoder cable

Cable type.............................................. ...............Twisted pair and screened. Note:

Cable length...........................................................Observe the prescriptions of the encoder supplier.

Absolute encoder is tested ok up to 150 meter cable at 105 kHz clock and 100 m at 262 kHz clock.

(Tested with TR electronic encoder type CE-65 M 8192*4096 and appropriate cable prescribed by TR electronic)

Maximum allowed time delay between clock and data signal measured at the controller terminals

Encoder output, MK3B:

Terminal designations ................................................................................................... A1, A1, B1, B1, Z1, Z1

Signal type ............................................................................................................................. Linedriver, RS485

Maximum frequency ............................................................................................................................. 150 kHz

Minimum frequency ................................................................................................................................ 150 Hz

Maximum number of slaves ........................................................................... 31 (more when using repeaters)

Maximum cable length ............................................................................................................................ 400 m

Dip switch 1.1 – 1.5

Switch

designation

OFF

1.1

Option card must be supplied from an

external power supply (24 V)

1.2

Terminating resistor not connected (Z channel)

1.3

Terminating resistor not connected (B channel)

1.4

Terminating resistor not connected (A channel)

1.5

Option card must be supplied from an

external power supply (Common)

Default setting of switch 1.1 - 1.5 is ON.

SW. 1.2, 1.3 and 1.4 applies only to MK3B (the master encoder interface).

NB!

When using the virtual master function termination must be switched off (sw 1.2-1.4) in all options

except on the first and the last station connected in the network.

VLT

5000 SyncPos option

the prescriptions of the encoder supplier.

Option card is supplied from control card

(24 V)

Terminating resistor connected (Z channel)

Terminating resistor connected (B channel)

Terminating resistor connected (A channel)

Option card is supplied from control

card (Common)

MD.50.B2.02 – VLT is a registered Danfoss trade mark

Note: Please observe

Note:

9 µsec

105kHz clock =

262kHz clock = 3.5 µsec