Danfoss VLT5000 SyncPos Operating Instructions Manual page 12

Digital inputs
MK3A is a 10pole terminal block with 8 digital
inputs (I1–I8) and 2 terminals for 24 V supply (See
Supply voltages on page 12).
The digital inputs are used by the SyncPos appli-
cation program and are therefore free progra-
mable. All the inputs can also be assigned func-
tions by the following parameters:
I_BREAK (105) interrupt a running
program
I_CONTINUE (106) restart interrupted
program
I_ERRCLR (107) reset fault
I_NEGLIMITSW (47) negative limit switch
I_POSLIMITSW (46) positive limit switch
I_PRGCHOICE (104) selection of SyncPos
program
I_PRGSTART (103) start of SyncPos program
I_REFSWITCH (45) home switch
Only two of the inputs are assigned a specific
function by parameter:
• • • • • I5 I5 I5 I5 I5 is used as marker input for the Master
when "External marker signal" is selected in
parameter SYNCMTYPM (60).
• • • • • I6 I6 I6 I6 I6 is used as marker input for the Slave when
"External marker signal" is selected in para-
meter SYNCMTYPS (61).
Digital outputs
MK3C is a 10pole terminal block with 8 digital out-
puts and 2 terminals for 24 V supply (See Supply
voltages on page 12).
The digital outputs are controlled by the SyncPos
application program and are thus free programable.
All the outputs can also be assigned functions by
the following parameters:
O_AXMOVE (64) axe is moving
O_BRAKE (48) activation of mechanical brake
O_ERROR (108) fault indication
Terminal A1
Incremental input A in
Absolute input Clk out
Virtual master A out
Fig. 1
Terminal A2
Incremental input A in
Absolute input Clk out
Fig. 2
MG.10.J8.02 – VLT is a registered Danfoss trade mark
Programmable SyncPos motion controller
Encoder interface 1
MK3B is a 8pole terminal block with 6 terminals
for the encoder signals and 2 terminals with 5 V
supply.
(See Supply voltages on page 12).
Encoder interface 1 can be used for one of the
following 2 functions:
• • • • • Master encoder input (incremental or abso-
lute) for synchronizing.
• • • • • Virtual master encoder output (incremental).
The table below shows the function of each termi-
nal in the 3 possible modes. (See fig. 1)
options except on the first and the last station con-
nected in the network. See also connection example
on page 16 and 17.
Encoder interface 2
MK3D is a 8pole terminal block with 6 terminals
for the encoder signals and 2 terminals with 5 V
supply
(See Supply voltages on page 12).
Encoder interface 2 can be used for one of the
following 2 functions:
• • • • • Slave encoder input (incremental or absolute)
for synchronizing.
• • • • • Feedback encoder input (incremental or ab-
solute) for positioning.
The table below shows the function of each
terminal in the 2 possible modes. (See fig. 2)
A1 B1
A in B in
Clk out Data in
A out B out
A2 B2
A in B in
Clk out Data in
N B!
When using the virtual master function termi-
nation must be switched off (sw 1.3) in all
B1 Z1 Z1
B in Z in Z in
Data in Not used Not used
B out Z out Z out
B2 Z2 Z2
B in Z in Z in
Data in Not used Not used
11