Danfoss VLT FC 51 Series User Manual

4.6. Parameter Group 5: Digital In/Out
4.6.1. 5-** Digital In/Out
The following describes all digital input command functions and signals.
4.6.2. 5-1* Digital Inputs
Parameters for configuring the functions for the input terminals.
The digital inputs are used for selecting various functions in the frequency converter. All digital
inputs can be set to the following:
[0] No Operation The frequency converter will not react to signals transmitted to
the terminal.
[1] Reset Reset the frequency converter after a Trip/Alarm. Not all alarms
can be reset.
[2 ] Coast Inverse Coasting stop, inverted input (NC). The frequency converter
leaves the motor in free mode.
[3] Coast and reset inv. Reset and coasting stop inverted input (NC). The frequency
converter resets and leaves the motor in free mode.
[4] Quick stop inverse Inverted input (NC). Generates a stop in accordance with the
quick-stop ramp time set in par. 3-81. When motor stops, shaft
is in free mode.
[5] DC-brake inv. Inverted input for DC braking (NC). Stops motor by energizing
it with DC current for a certain time period, see par. 2-01. Func-
tion is only active when value in par. 2-02 is different from 0.
[6] Stop inv. Stop inverted function. Generates stop function when selected
terminal goes from logical level “1” to “0”. Stop is performed
according to selected ramp time.
[8] Start Select start for a start/stop command.
1 = Start, 0 = stop.
[9] Latched start Motor starts if a pulse is applied for min. 2 ms. Motor stops when
Stop inverse is activated.
[10] Reversing Change direction of motor shaft rotation. Reversing signal only
changes direction of rotation; it does not activate start function.
Select
Both directions [2] in par. 4.10.
0 = normal, 1 = reversing.
[11] Start reversing Use for start/stop and for reversing at the same time. Signals
on start [8] are not allowed at the same time.
0 = stop, 1 = start reversing.
[12] Enable start forward Use if motor shaft must rotate clockwise at start.
[13] Enable start reverse Use if motor shaft must rotate counterclockwise at start.
[14] Jog Use for activating jog speed. See par. 3-11.
[16] Preset ref bit 0 Preset ref bit 0, 1 and 2 enables a choice between one of the
eight preset references according to the table below.
VLT Micro Drive FC 51 4. Parameter Descriptions
MG.02.C2.02 - VLT
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is a registered Danfoss trademark 39
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Danfoss VLT FC 51 Series Specifications

General

Brand	Danfoss
Model	VLT FC 51 Series
Category	DC Drives
Language	English