Danfoss VLT 5000 Series, Instruction Manual

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verse [0] or Reset and coasting stop, in-
verse [1]).
After Freeze output , the PID integrators are reset.
345 Encoder loss timeout
(ENC LOSS TIMEOUT)
Value:
0 - 60 sec.
1 sec.
Function:
If the encoder signal is interrupted from terminal 32 or
33 the function selected in parameter 346 will be acti-
vated.
If the encoder feedback signal is different from the out-
put fre/- 3 x nominal motor slip the encoder
loss function will be activated.
An encoder loss timeout can occur even if the encoder
works all right. Check the motor parameter in group
100 if no error can be found on the encoder.
The Encoder loss function is only active in
Speed con-
trol, closed loop [1] and Torque control, speed feed-
back [5], see parameter 100 Configuration .
Description of choice:
Set the required time.
346 Encoder loss function
(ENC. LOSS FUNC)
Value:
Off (OFF) [0]
Freeze output frequency (FREEZE OUTPUT
FREQ.)
[1]
Jog (JOGGING) [3]
Max. speed (MAX SPEED) [4]
Stop and trip (STOP AND TRIP) [5]
Select Setup 4 (SELECT SETUP 4) [7]
Function:
In this parameter the function can be activated if the
encoder signal is disconnected from terminal 32 or 33.
If more time-outs occur at the same time the adjustable
frequency drive will give the following priority to the
time-out function:
1. Parameter 318 Function after time out
2.
Parameter 346 Function after encoder loss
3. Parameter 514 Bus time interval function .
Description of choice:
The output frequency of the adjustable frequency drive
can be:
- frozen at the present value
- overruled to jog frequency
- overruled to max. frequency
- overruled to stop with subsequent trip
- overruled to Setup 4.
357 Terminal 42, Output minimum scaling
(out 42 scal min)
359 Terminal 45, Output minimum scaling
(out 45 scal min)
Value:
000 - 100%
0%
Function:
These parameters are to scale the minimum output of
the selected analog/pulse signal on terminals 42 and
45.
Description of choice:
The minimum value is to be scaled as a percentage of
the maximum signal value, i.e. 0mA (or 0 Hz) is desired
at 25% of the maximum output value, and then 25% is
programmed.
The value can never be higher than the corresponding
setting of
Output maximum scaling if this value is below
100%.
VLT
®
5000 Series
= factory setting, () = display text, [] = value for use in communication via serial communication port
MG.51.C5.22 - VLT
p
is a registered Danfoss trademark. 123
Progra
mming