www.eltherm.com
18
operation manual
temperature contoller ELTC-MV2
BU 123
Revision 1
Ramp mode PWM
The actual value x is recorded via a temperature sensor or a
standard signal and converted into a digital signal. Before this
signal is sent to the controller, the actual value is corrected.
The corrected actual value is shown on the display
The setpoints w1 to w9 and the associated running times t1
to t9 are set on the controller. The current ramp phase, the
current setpoint and the remaining run time of the ramp
section can be shown on the display.
The hysteresis h is set on the controller and specifies the ran-
ge in which the controller clocks.
In the controller the control difference is formed with the
current setpoint x
di
= w
i
- x
Parameters used
No. description
factory
setting
Own
setting
P28
power monitoring
load output
0
P40 power correction [%]
10
P41 min. ambient temperature
-30
P42
material selection
1
P43
insulation material
6
P44
thickness insulation material
6
P45
medium selection
2
P46
geometry
0
P47
pipe outer diameter metal
11
P48
pipe outer diameter plastic
3
P49
cooling times
0
P50 start value
100
P51 Ramp 1 duration
30
P52 Ramp 1 setpoint
100
P53 Ramp 2 duration
30
P54 Ramp 2 setpoint
100
P55 Ramp 3 duration
30
P56 Ramp 3 setpoint
100
P57 Ramp 4 duration
30
P58 Ramp 4 setpoint
100
P59 Ramp 5 duration
30
P60 Ramp 5 setpoint
100
P61 Ramp 6 duration
30
P62 Ramp 6 setpoint
100
P63 Ramp 7 duration
30
P64 Ramp 7 setpoint
100
P65 Ramp 8 duration
30
P66 Ramp 8 setpoint
100
P67 Ramp 9 duration
30
P68 Ramp 9 setpoint
100
P69 band alarm hysteresis
5
P75
Low Level mode analog inputs/
outputs
0
Structure switch settings
No.
description
selection option
S01
Selection actual
value X1
[1] = Pt100, 3-wire (AE1)
2 = Pt100, 2-wire (AE1)
3 = thermocouple type J (AE1)
4 = thermocouple type K (AE1)
5 = voltage input (AE3)
6 = current input (AE3)
S03
Select setpoint W
3 = ramp function
S04
Selection of output
function controller
2 = PWM
S05
Selection swit-
ching output
[1] = internal hybrid relay with
soft start
2 = external power contactor
3 = analog output clocked
Parameters used
No. description
factory
setting
Own
setting
P01 input variable 1 (X1)
Display only
P03 reference variable (W)
Display only
P04 current display
Display only
P07 current ramp phase
Display only
P08 remaining time ramp phase
Display only
P10 control setpoint 1 (= W1)
5
P11 switching hysteresis 1
2
P15 sensor correction 1
0
P16 over temperature alarm 1
999
P17 low temperature alarm 1
-99
P18 Lower analog scaling value
0
P19 Upper analog scaling value
100
