Technical Manual Temperature-, Humidity-, Pressure-Controller TAR x260
Page 9
Voltage Output / Analogue Output
The TAR-x260 owns an analog output with a 0-10 V DC-signal.
Because of its scalability it can be used both for deliver an actual
value 1 image or as a proportional control resp. PI-control output.
P36.... fixes the actual value the analog output delivers 10V DC.
P37.... fixes the actual value the analog output delivers 0V DC.
P38.... Fixes the I-part of the output signal in 5 steps from appr.
0,25...4 minutes or switches it off.
Analog Output Operation Mode
P39 fixes the operation mode of the output.
P39 = 0
Output is de-activated.
P39 = 1
Output effects proportional, that's to say increasing
actual value -> increasing output voltage
P36/P37 are absolute values.
P39 = 2
Output effects anti-proportional, that's to say
increasing actual value -> decreasing output
voltage
P36/P37 are absolute values.
P39 = 3
Output effects proportional, that's to say increasing
actual value -> increasing output voltage.
The values set by P36/P37 effect relative to the
current setpoint (P03 + shift).
Example:
P36 = 10°C, P37 = -10°C
P39 = 3, P03 = 15°C, no current shift
Output-:
10V at P03 + P36 = 25°C
voltages
0V at P03 - P37 = 5°C
P39 = 4
Output effects anti-proportional, that's to say
increasing actual value -> decreasing output
voltage.
The values set by P36/P37 effect relative to the
current setpoint (P03 + shift).
Example:
P36 = 10°C, P37 = -10°C
P39 = 3, P03 = 15°C, no current shift
Output-:
0V at P03 + P36 = 25°C
voltages
10V at P03 - P37 = 5°C
Example Actual Value Image:
You have a remote display or similar which shows -50°C at 0V
input voltage and +50°C at 10V DC.
P37 = "-50", P36 = "+10", P39 must be "1" .
Example Proportional Controller:
You want to control any device with 0-10V-input depending on
pressure. You want it to be half open at 5.0 bar. If pressure
descends the device should go more open, fully open from 4 bar.
If pressure increases the device should closed, from 6 bar it must
remain closed.
P37 ="4.0", P36 ="6.0", P39 ="2"
Slow-down time / I-part
P38 (slow-down time) fixes the influence of the I-part to the control
process. The amount of the I-part of the controlling variable is
identical with the P-part and will be added. The full size of the I-part
will effect after P38 is run down.
Example:
- 10V U
out
at +10°C, 0V U
out
at -10°C
- aimed setpoint 0°C = 5V U
out
- current actual value 0°C
Actual value increases by 2K ->
- U
out
rises to 6V immediately
- U
aus
rises farther, after P38 is run down 7V will be
reached.
controlling
variable
slow-down time
P38
max.
setpoint-
deviation
t
P-part
I-part
t
TAR 1260 and Servo Drives / Actuators
Actuators work with 24V AC mostly and so you get the thought to supply actuator and controller from the same
source. Unfortunately, supply voltage and control input are not isolated in actuators, this may destroy the TAR 1260.
Because of this:
If a TAR 1260 must control a servo drive, the TAR must be supplied by an own, separate transformer !