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3.7.3 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 adjustable frequency drive. All digital inputs can be set to the following functions:
Digital input function
Select
Terminal
No operation
[0]
All *terminal 19, 32, 33
Reset
[1]
All
Coast inverse
[2]
27
Coast and reset inverse
[3]
All
DC brake inverse
[5]
All
Stop inverse
[6]
All
External interlock
[7]
All
Start
[8]
All *terminal 18
Latched start
[9]
All
Reversing
[10]
All
Start reversing
[11]
All
Jog
[14]
All *terminal 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
Slow
[22]
All
Set-up select bit 0
[23]
All
Set-up select bit 1
[24]
All
Pulse input
[32]
terminal 29, 33
Ramp bit 0
[34]
All
Line failure inverse
[36]
All
Fire mode
[37]
All
Run Permissive
[52]
All
Hand start
[53]
All
Auto-start
[54]
All
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]
All
Reset Maintenance Word
[78]
All
Lead Pump Start
[120]
All
Lead Pump Alternation
[121]
All
Pump 1 Interlock
[130]
All
Pump 2 Interlock
[131]
All
Pump 3 Interlock
[132]
All
3.7.4 Digital Inputs, 5-1* continued
All = Terminals 18, 19, 27, 29, 32, 33, 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 adjustable frequency drive 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 Parameter Description
VLT
®
HVAC Drive Programming Guide
3-48
MG.11.C6.22 - VLT
®
is a registered Danfoss trademark
3