Danfoss VLT AutomationDrive FC 302 Programming Manual page 85

Parameter Descriptions
with very low resolutions (e.g. 30 ppr) at low
speeds.
Speed [rpm]
a Time[sec]
a: very low encoder
resolution
Table 3.16
Pulse
Timer
Sample time
Time counter
Time Start
Illustration 3.34 Duration Between Pulse
Flanks
[34] Ramp bit Enables a choice between one of the 4 ramps
0 available, according to Table 3.17.
[35] Ramp bit Same as Ramp bit 0.
1
Preset ramp bit
Ramp 1
Ramp 2
Ramp 3
Ramp 4
Table 3.17 Preset Ramp Bit
[40] Latched A latched Precise Start only requires a pulse
Precise of 3 ms on T18 or T19.
Start When using for 1-83 Precise Stop Function [1]
Cnt stop with reset or [2] Cnt stop w/o reset:
When the reference is reached, the frequency
converter internally enables the Precise Stop
signal. This means that the frequency
converter does the Precise Stop when the
counter value of parameter 1-84 Precise Stop
Counter Value is reached.
[41] Latched Sends a latched stop signal when the precise
Precise stop function is activated in
Stop parameter 1-83 Precise Stop Function. The
inverse Latched Precise stop inverse function is
available for terminals 18 or 19.
[51] External This function makes it possible to give an
interlock external fault to the frequency converter. This
fault is treated in the same way as an
internally generated alarm.
[55] DigiPot INCREASE signal to the Digital Potentiometer
Increase function described in parameter group 3-9*
Digital Pot. Meter
[56] DigiPot DECREASE signal to the Digital Potentiometer
Decrease function described in parameter group 3-9*
Digital Pot. Meter
®
VLT AutomationDrive FC 301/302 Programming Guide
Speed [rpm]
b Time[sec]
b: standard encoder
resolution
Read Timer: Read Timer:
20 timer tides 20 timer tides
1 0
0 0
0 1
1 0
1 1
MG33MI02 - Rev. 2013-11-20
[57] DigiPot Clears the Digital Potentiometer reference
Clear described in parameter group 3-9* Digital Pot.
Meter
[60] Counter A (Terminal 29 or 33 only) Input for increment
counting in the SLC counter.
[61] Counter A (Terminal 29 or 33 only) Input for decrement
counting in the SLC counter.
[62] Reset Input for reset of counter A.
Counter A
[63] Counter B (Terminal 29 or 33 only) Input for increment
counting in the SLC counter.
[64] Counter B (Terminal 29 or 33 only) Input for decrement
counting in the SLC counter.
[65] Reset Input for reset of counter B.
Counter B
[70] Mech. Brake Brake feedback for hoisting applications: Set
Feedback parameter 1-01 Motor Control Principle to [3]
flux w/ motor feedback; set
parameter 1-72 Start Function to [6] Hoist
mech brake Ref.
[71] Mech. Brake Inverted brake feedback for hoisting
Feedback applications
inv.
[72] PID error When enabled, it inverts the resulting error
inverse from the process PID controller. Available
only if "Configuration Mode" is set to
"Surface Winder", "Extended PID Speed OL"
or "Extended PID Speed CL".
[73] PID reset I- When enabled, resets the I-part of the
part Process PID controller. Equivalent to
parameter 7-40 Process PID I-part Reset.
Available only if "Configuration Mode" is set
to "Surface Winder", "Extended PID Speed
OL" or "Extended PID Speed CL".
[74] PID enable When enabled, enables the extended process
PID controller. Equivalent to
parameter 7-50 Process PID Extended PID.
Available only if "Configuration Mode" is set
"Extended PID Speed OL" or "Extended PID
Speed CL".
[80] PTC Card 1 All Digital Inputs can be set to [80] PTC Card
1. However, only one Digital Input must be
set to this choice.
[91] Profidrive The functionality is the same as the
OFF2 according control word bit of the Profibus/
Profinet option.
[92] Profidrive The functionality is the same as the
OFF3 according control word bit of the Profibus/
Profinet option.
[98] Start edge Edge triggered start command. Keeps the
triggered start command alive. It can be used for a
start push-button.
[100] Safe Option
Reset
3 3
83