Danfoss iC2 Application Manual page 234

Application Guide | iC2-Micro Frequency Converters
Selection number Selection name
19 Freeze Reference
20 Freeze Output
21 Speed Up
22 Speed Down
23 Set-up Select Bit 0
25 Start and Coast
28 Catch Up
29 Slow Down
32 Pulse Input
34 Ramp bit 0
234
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Selection description
Freeze the actual reference, which is now the point of enable/
condition for [21] Speed up and [22] Speed down to be used.
If [21] Speed up or [22] Speed down is used, the speed change
always follows ramp 2 (P 5.5.4.9 Ramp 2 Accel. Time and P
5.5.4.10 Ramp 2 Decel. Time) in the range 0–P 5.5.3.3 Reference
Maximum.
Freeze the actual motor frequency (Hz), which is now the point
of enable/condition for [21] Speed up and [22] Speed down to
be used. If [21] Speed up or [22] Speed downis used, the speed
change always follows ramp 2 (P 5.5.4.9 Ramp 2 Accel. Time and
P 5.5.4.10 Ramp 2 Decel. Time) in the range 0–P 4.2.2.4 Nominal
Frequency.
Note: When [20] Freeze output is active, the frequency converter
cannot be stopped by setting the signal on [8] Start to low.
Stop the frequency converter via a terminal programmed for [2]
Coasting inverse or [3] Coast and reset, inverse.
Select [21] Speed up and [22] Speed down if digital control of
the up/down speed is needed (motor potentiometer). Activate
this function by selecting either [19] Freeze referenceor [20]
Freeze output. When speed up/down is activated for less than
400 ms, the resulting reference is increased/decreased by 0.1%. If
speed up/down is activated for more than 400 ms, the resulting
reference follows the setting in ramping up/down P 5.5.4.9 Ramp
2 Accel. Time/P 5.5.4.10 Ramp 2 Decel. Time. See
Select [21] Speed up and [22] Speed down if digital control of
the up/down speed is needed (motor potentiometer). Activate
this function by selecting either [19] Freeze referenceor [20]
Freeze output. When speed up/down is activated for less than
400 ms, the resulting reference is increased/decreased by 0.1%. If
speed up/down is activated for more than 400 ms, the resulting
reference follows the setting in ramping up/down P 5.5.4.9 Ramp
2 Accel. Time/P 5.5.4.10 Ramp 2 Decel. Time. See
Select [23] Set-up select bit 0 or [1] Set-up select bit 1 to select 1
of the 2 set-ups. Set P 6.6.1 Active Set-up to [9] Multi Set-up.
Select [25] Start and Coast for a start command or coast stop.
Logic 1=start, logic 0=coast stop.
Increase reference value by percentage (relative) set in P 5.5.3.13
Freeze Up/Down Step Delta. See
Reduce reference value by percentage (relative) set in P 5.5.3.13
Freeze Up/Down Step Delta. See
The motor starts to run reverse when a pulse is applied for
minimum 4 ms. The motor stops when stop commands are
given.
This function makes it possible to give an external fault to
the frequency converter. This fault is treated as an internally
generated alarm.
Table 66.
Table 66.
Table 66.
Table 66.
AB413939445838en-000301 / 130R1254