8.2.7. 5-1* Digital Inputs
Parameters for configuring the input 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 functions:
Digital input function Select Terminal
No operation [0] All *term 32, 33
Reset [1] All
Coast inverse [2] All
Coast and reset inverse [3] All
DC-brake inverse [5] All
Stop inverse [6] All
External interlock [7] All
Start [8] All *term 18
Latched start [9] All
Reversing [10] All *term 19
Start reversing [11] All
Jog [14] All *term 29
Preset reference on [15] All
Preset ref bit 0 [16] All
Preset ref bit 1 [17] All
Preset ref bit 2 [18] All
Freeze reference [19] All
Freeze output [20] All
Speed up [21] All
Speed down [22] All
Set-up select bit 0 [23] All
Set-up select bit 1 [24] All
Pulse input [32] term 29, 33
Ramp bit 0 [34] All
Mains failure inverse [36] All
Run Permissive [52]
Hand start [53]
Auto start [54]
DigiPot Increase [55] All
DigiPot Decrease [56] All
DigiPot Clear [57] All
Counter A (up) [60] 29, 33
Counter A (down) [61] 29, 33
Reset Counter A [62] All
Counter B (up) [63] 29, 33
Counter B (down) [64] 29, 33
Reset Counter B [65] All
Sleep Mode [66]
Reset Maintenance Word [78]
Lead Pump Start [120]
Lead Pump Alternation [121]
Pump 1 Interlock [130]
Pump 2 Interlock [131]
Pump 3 Interlock [132]
All = Terminals 18, 19, 27, 29, 32, X30/2, X30/3, X30/4. X30/ are the terminals on MCB 101.
Functions dedicated to only one digital input are stated in the associated parameter.
All digital inputs can be programmed to these functions:
[0] No operation No reaction to signals transmitted to terminal.
[1] Reset Resets frequency converter after a TRIP/ALARM. Not all alarms can be reset.
[2] Coast inverse Leaves motor in free mode. Logic ‘0’ => coasting stop.
(Default Digital input 27): Coasting stop, inverted input (NC).
[3] Coast and reset inverse Reset and coasting stop Inverted input (NC).
Leaves motor in free mode and resets the frequency converter. Logic ‘0’ => coasting stop and reset.
[5] DC-brake inverse Inverted input for DC braking (NC).
Stops motor by energizing it with a DC current for a certain time period. See par. 2-01 to par. 2-03. The function
is only active when the value in par. 2-02 is different from 0. Logic ’0’ => DC braking.
[6] Stop inverse Stop Inverted function. Generates a stop function when the selected terminal goes from logical level ‘1’ to ‘0’.
The stop is performed according to the selected ramp time (par. 3-42, par. 3-52, par. 3-62, par. 3-72).
8. How to programme the frequency converter
VLT
®
AQUA Drive
Operating Instructions
76
MG.20.M4.02 - VLT
®
is a registered Danfoss trademark
8
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