Code
Name
Setting range
Default
Min.
Attri.
E2.26 AO1 output setting
0: Output frequency
1: Setting frequency
2: Output current
4: Output voltage
5: Output power
6: AI1 analog input
12: Parameter setting
from communication
0
–
Run
C1.73 Motor thermal sensor protection
level
0.0...10.0
2.0
0.1
Stop
C1.74 Motor thermal model protection
time constant
0.0...400.0 min
DOM
0.1
Stop
E1.69 Analog input filter time
0.000...2.000 s
0.100
0.001
Run
Activate the function of temperature monitoring with temperature sensor:
Set [E1.60] = '1: AI1 analog input'
AI1 will be automatically set as voltage input mode when [E1.60] =
1.
Select the sensor type:
●
[C1.72] = 0: PTC, KTY84/130
For PTC sensors, the value of resistor R in the figure should be close to the
sensor resistance when the motor is at high temperature.
●
[C1.72] = 2: PT100
For a good resolution of temperature with PT100 sensors, the value of resis-
tor R in the figure should be close to the sensor resistance at the motor tem-
perature limit.
●
[C1.72] = 3: PT1000
For PT1000 sensors, the relationship between the resistor R and the motor
temperature is:
-30 ℃: 882 Ω; 0 ℃: 1,000 Ω; 200 ℃: 1,758 Ω
Set the motor thermal sensor protection level
Set C1.73 'Motor thermal sensor protection level' according to the characteristic
of the temperature sensor. The setting value corresponds to the voltage value
detected by of analog input.
Example: If [C1.73] = 2, it represents 2 V, and the frequency converter stops
with error code 'Ot' displayed on the operating panel when the voltage level on
analog input is higher than 2 V.
Bosch Rexroth AG
Functions and Parameters
VFC 3210
160/253
DOK-RCON04-VFC3210****-IT01-EN-P