Parameter Group 5-** Digital In/Out; Digital I/O Mode - Danfoss VLT Aqua Drive FC 202 Programming Manual

Programming Guide | VLT® Aqua Drive FC 202
2. Select [1] Enabled in parameter 4-64 Semi-auto Bypass Set-up.
3.
Press [Hand On] on the LCP to start the search for frequency bands causing resonances. The motor ramps up according to the
ramp set.
4. When Sweeping through a resonance band, press [OK] on the LCP when leaving the band. The actual frequency is stored as the
1st element in parameter 4-62 Bypass Speed To [RPM] or parameter 4-63 Bypass Speed To [Hz] (array). Repeat this step for each
resonance band identified at the ramp-up (maximum 4 can be adjusted).

Then maximum speed has been reached, the motor automatically begins to ramp down.
5. Repeat the preceding procedure when speed is leaving the resonance bands during deceleration. The actual frequencies
registered when pressing [OK] are stored in parameter 4-60 Bypass Speed From [RPM] or parameter 4-61 Bypass Speed From
[Hz].
6.
When the motor has ramped down to stop, press [OK].

Parameter 4-64 Semi-auto Bypass Set-up automatically resets to Off. The drive stays in hand-on mode until [Off ] or
[Auto On] is pressed on the LCP. If the frequencies for a certain resonance band are not registered in the right order,
all registrations are canceled, and the following message is shown: Collected speed areas overlapping or not completely
determined. Press [Cancel] to abort. Registration in the wrong order is when frequency values stored in parameter 4-62
Bypass Speed To [RPM] are higher than the values in parameter 4-60 Bypass Speed From [RPM], or if they do not have
the same numbers of registrations for the Bypass From and Bypass To.

Parameter Group 5-** Digital In/Out

5.7

5-0* Digital I/O Mode

5.7.1
Parameters for configuring the input and output using NPN and PNP.
5-00 Digital I/O Mode
Default value: [0] PNP - Active at 24V
Setup: All setups
Data type: Uint8
Perform a power cycle to activate the parameter once it has been changed.
Digital inputs and programmed digital outputs are preprogrammable for operation either in PNP or NPN systems.
Option Name
[0]* PNP - Active at 24V
[1] NPN - Active at 0V
5-01 Terminal 27 Mode
Default value:
[0] Input
144 | © 2024.06
Parameter type:
Conversion index:
Change during operation:
NOTICE
Description
Action on positive directional pulses (0). PNP systems are pulled
down to GND.
Action on negative directional pulses (1). NPN systems are pulled
up to +24 V, internally in the drive.
Parameter type:
Parameter Descriptions
Option
–
False
Option
AU361182657213en-002101 / 130R0338