Nord Drivesystems NORDAC LINK SK 155E-FDS - Configuration

4 Commissioning
BU 0155 en-3520 63
4.3.4.3 Configuration
The most important functionality is assigned via the arrays [-05] … [-08] of parameter (P420) and via
the arrays [-04] … [-05] of parameter (P434).
Bus I/O bits
WARNING
Unexpected movement due to automatic starting
In the event of a fault (communication interrupted or bus cable disconnection) the device
automatically switches off, since the device enable is no longer present.
Restoration of communication may result in an automatic start and therefore unexpected movement
of the drive unit. To prevent any hazard, a possible automatic start must be prevented as follows:
• If a communication error occurs, the bus master must actively set the control bits to “zero”.
The device is equipped with two additional digital inputs for connecting initiators. However, there are
no optional outputs for connecting actuators which are operated directly via the BUS. The following
connections are each provided for four reference data bits:
BUS-IN Function (P420[-05…-08])
Status
Status
Bit 1 Bit 0
Bit 0 Enable right 0 0 Motor is switched off
Bit 1
Enable left
0
1
Field of rotation right present at
motor
Bit 2
Acknowledge fault
1)
1
0
Field of rotation left present at motor
Bit 3
Release brake manually
2)
1
1
Motor is switched off
1)
Acknowledge with flank 0

1.
For control via the bus, acknowledgement is not
automatically performed by a flank on one of the enable
inputs
2)
0 = Brake applied, will be released automatically if
required
1 = Brake is released immediately.
BUS-OUT Function (P434 [-04 … -05])
Status
Status
Bit 1 Bit 0
Bit 0
Fault (status bit 0)
0
0
Error active
Bit 1
Operation (status bit 1)
0
1
Standby (motor stationary)
Bit 2
1)
Initiator 1 status (BDI1)
1
0
Warning (but motor running)
Bit 3
1)
Initiator 2 status (BDI2)
1
1
Run (motor running without warning)
1)
Bits 2 and 3 are directly coupled to digital inputs BDI1
and BDI2.