NORD Drivesystems BU0210 - Manual (Page 29)

3 Function description
BU 0210 GB Subject to technical amendments 29
3.8 Output messages
3.8.1 Digital output
The SK 2x5E is equipped with a digital output, which can be parameterised for a function.
Reference point (setting [20])
The digital output indicates that there is a valid reference point. The output is switched off if a reference
point run is started. The output switches on as soon as the reference point has been found. The status after
switching on the inverter supply voltage depends on the setting in P606 "Resolution CANopen Absolute
Encoder" - with "Save Position" the output is switched on after the supply voltage is switched on. Otherwise
it is switched off.
Setpoint reached (setting [21])
With this function the inverter reports that the setpoint position has been reached. This output switches on if
the difference between the setpoint and the actual position is smaller than the value set in parameter P625
"Output Hysteresis" and the current frequency is lower than the frequency parameterised in parameter
P104 "Minimum Frequency" + 2Hz.
Comparative position (setting [22])
This output switches on if the actual position is greater or equal to that set in parameter P626 "Comparative
Position Output". The output switches off again if the actual position is smaller than the "Comparative
Position Output" - "Output Hysteresis". The sign of the value is taken into account.
[Output switches on if p
ist
≥ p
vergl
and switches off if
ist
< p
vergl
– p
hyst
]
Comparative position value (setting [23])
The function "Comparative Position Value" corresponds to the function "Comparative Position" with the
difference that the position is processed as an absolute value (without sign). The output is switched if the
actual position exceeds the value parameterised in P626 "Comparative Position Output" or undershoots the
same negative amount.
[Output switches on if |p
ist
| ≥ |p
vergl
| and switches off if |p
ist
| < |p
vergl
| – p
hyst
]
Position Array Value (setting [24])
This output always switches on if a position parameterised in parameter P613 "Position" is reached or
passed over. This function is always available if the position setpoint mode in parameter P610 "Setpoint
Mode" is not set to "Position Array" i.e. the function is available for all functions which can be set.
Comparative position reached (setting [25])
The output switches on if the difference between the actual position and the value parameterised in P626
"Comparative Position Output" is less than the value set in parameter P625 "Output Hysteresis".
[/output switches of if
vergl
- p
ist
)| < p
hyst
]
Comparative position value reached (setting [26])
The output switches on if the difference between the actual position and the value parameterised in P626
"Comparative Position Output" is less than the value set in parameter P625 "Output Hysteresis".
[output switches on if |(|p
vergl
| - |p
ist
|)| < p
hyst
]
NOTE: The digital output functions are also available if the position control is switched off (P600
"Position Control" = 0).