Pid Fbv Output; Over/Under-Torque Output; Zero Speed Detection Output; Heat Sink Overheat Warning Output - Omron MX2 User Manual

"C" Group: Intelligent Terminal Functions
Func.
Code
C040
Output mode of overload warn-
ing
C041
Overload warning level
C241
Overload warning level,
nd
2 motor
C042
Frequency arrival setting for
acceleration
C043
Frequency arrival setting for
deceleration
PID FBV Output - The Error for the PID
loop is the magnitude (absolute value)
of the difference between the Set point
(desired value) and Process Variable
(actual value). The PID output deviation
signal [OD] (output terminal function
option code 04) indicates when the
error magnitude has exceeded a mag-
nitude you define.
Over/Under-torque
inverter outputs the over/under-torque signal when it detects that the esti-
mated motor output torque exceeds the specified level. To enable this func-
tion, assign parameter "07" (OTQ: over/under-torque signal) to an intelligent
output terminal. Over-torque or under-torque can be selected by function
C054.
This function is effective only when the V/F characteristic curve selection
"A044" or "A244" is the sensorless vector control. With any other V/F charac-
teristic curve selected the output of the OTQ signal is unpredictable. When
using the inverter for a lift, use the OTQ signal as the trigger to stop braking.
Use the frequency arrival signal as the trigger to start braking.
Electronic Thermal Warning Output - Please refer to page 210 for detailed
information.
Zero speed detection Output - The inverter outputs the 0 Hz speed detec-
tion signal when the inverter output frequency falls below the threshold fre-
quency specified in the zero speed detection level (C063).
To use this function, assign parameter "21" to one of the intelligent output ter-
minals [11] to [12] (C021 to C022), or to the alarm relay output terminal (C026).
This function applies to the inverter output frequency when the V/F character-
istic curve selection is based on the constant torque (VC), reduced torque
(VP), free-V/F or sensorless vector control.
Heat Sink Overheat Warning Output - The inverter monitors the tempera-
ture of its heat sink, and outputs the heat sink overheat warning (OHF) signal
when the temperature exceeds the heat sink overheat warning level specified
in parameter C064.
"C" Function
Name
Two option codes:
00... During accel., decel. and
constant speed
01... During constant speed only
Sets the overload warning signal
level between 0% and 200% (from
0 to two time the rated current of
the inverter)
Sets the overload warning signal
level between 0% and 200% (from
0 to two times the rated current of
the inverter)
Sets the frequency arrival setting
threshold for the output frequency
during acceleration, range is 0.0
to 400.0 Hz
Sets the frequency arrival setting
threshold for the output frequency
during deceleration, range is 0.0
to 400.0 Hz
PID Error (PV-SP) deviation threshold
Output
[OD]
output
Output - The
Description
*1
*1
Section 3-7
C044
1
0
Run Defaults
Mode
EU
Edit
01 –
Rated current A
for each
inverter model
Rated current A
for each
inverter model
0.0 Hz
0.0 Hz
t
t
Units
141