NORD Drivesystems BU0750 - Manual (Page 102)

NORDAC SK 750E Manual
102 Subject to technical amendments BU 0750 GB-3311
List of the possible functions of digital inputs P420 ... P425
Value Function Description Signal
0 No function Input switched off. ---
1 Enable right FI supplies output signal, rotation field right (if setpoint positive). 0

1 Flank (P428 = 0)
High
2 Enable left FI supplies output signal, rotation field left (if setpoint positive). 0

1 Flank (P428 = 0)
High
If automatic start is active (P428 = 1), a High level is sufficient.
The FI is barred if the functions enable right and enable left are triggered simultaneously.
3 Change rotation direction Causes the rotation field to change direction (combined with
Enable right or left). High
4 Fixed frequency 1
1
The frequency from P429 is added to the setpoint value. High
5 Fixed frequency 2 1 The frequency from P430 is added to the setpoint value. High
6 Fixed frequency 3
1
The frequency from P431 is added to the setpoint value. High
7 Fixed frequency 4
1
The frequency from P432 is added to the setpoint value. High
If several fixed frequencies are actuated at the same time, then they are added with the correct sign. In addition,
the analog setpoint (including minimum frequency) is added.
8 Parameter set switch Bit 0 Selection of the active Bit 0 parameter set (see P100) High
9 Hold frequency During the start-up or braking phase, a Low level will cause the
output frequency to be "held". A High level allows the ramp to
proceed. Low
10 Block voltage
2
The FI output voltage is switched off and the motor runs freely to a
stop. Low
11 Emergency stop
2
The FI reduces the frequency according to the programmed
emergency stop time (P426). Low
12 Fault acknowledgement
2
Error acknowledgement with an external signal. If this function is
not programmed, an error can also be acknowledged by setting
the enable to Low. 01
Flank
13 Thermistor input
2
Analog evaluation of the present signal switching threshold,
approx. 2.5 Volt. Switch-off delay = 2sec, warning after 1sec. Analog
14 Remote control With Bus system control, low level switches the control to control
via control terminals. High
15 Jog frequency This frequency fixed value can be set using the HIGHER / LOWER
and ENTER keys. High
16 Maintain frequency "Motorpoti" As for setting value 09, however, this is not maintained below the
minimum frequency and above the maximum frequency. Low
17 Parameter set switch Bit 1 Selection of the active parameter set Bit 2 (see P100). High
18 Watchdog
2
Input must see a High flank cyclically (P460), otherwise error E012
will cause a shutdown. Starting is with the first High flank. 01
Flank
19 Setpoint 1 on/off Analog input switch-on and switch-off 1 (High = ON) High
20 Setpoint 2 on/off Analog input switch-on and switch-off 2 (High = ON) High
21 Fixed frequency 5
1
The frequency from P433 is added to the setpoint. High
22 Reference point run PosiCon option (see manual BU 0710) High
23 Reference point PosiCon option (see manual BU 0710) High
24 Teach-In PosiCon option (see manual BU 0710) High
25 Quit Teach-In PosiCon option (see manual BU 0710) High
These functions are only available with the PosiCon Special Extension Unit!
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