INSTRUCTION
EN
TTC40FX
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Read this instruction before installation
and wiring of the product
Consult documentation in all cases where this symbol
is used, in order to find out the nature of the potential
hazards and any actions to be taken
Triac controller for proportional control
of electric heating
TTC40FX is a proportional controller for electric heating with auto-
matic voltage adjustment. TTC40FX pulses the whole load On - Off.
The ratio between On-time and Off-time is varied 0 - 100% to suit the
prevailing heat demand. The current is always switched at zero phase
angle to prevent RFI.
TTC40FX can control both symmetrical Y-connected 3-phase heaters
and symmetrical or asymmetrical Delta-connected heaters.
TTC40FX is only intended for electric heating control. The control
principle makes it unsuitable for motor- or lighting control. TTC40FX is
intended for DIN-rail mounting.
Installation
Mount TTC40FX on a DIN-rail in a cabinet or other enclosure.
Mount TTC40FX vertically with the text right side up.
Protection class:
IP20.
Ambient temperature:
0 - 40°C
N.B. TTC40FX emits approx. 70W of heat at full output which must be
dissipated.
Wiring
Supply voltage
Terminals L1in, L2in and L3in.
Supply voltage:
210-255 or 380-415V AC, 3 phase, 50 - 60 Hz with
automatic voltage adjustment.
Maximum current 40A/phase.
N.B. The supply voltage to TTC40FX should be wired via an all-pole
switch with a minimum contact gap of 3mm.
N.B. TTC40FX must be earthed.
L1 L2 L3 L3 L2 L1
1 1
3
8 9
Figure 1: Wiring of supply voltage and load
Load
Terminals L1out, L2out and L3out.
Resistive 3-phase heater without neutral
Maximum load:
5290W/phase at 230V phase -
phase voltage (40A).
9200W/phase at 400V phase -
phase voltage (40A).
Minimum load:
530W/phase at 230V phase - phase voltage (4A).
920W/phase at 400V phase - phase voltage (4A).
Settings
CT
Cycle time. 6 - 60 seconds.
Control signal
Terminals 8 and 9. Terminal 8 = Signal neutral.
Terminal 9 = 0 - 10V DC. 0V input signal will give 0% output and 10V input
will give 100% output.
Figure 2: Wiring of control signal
TTC40FX
NOTE: Do not leave the input unconnected since an open circuit will
not give 0% output but approx. 50%.
To ensure 0% output when no control signal is connected the control
input should be short-circuited.
Control principle
TTC40FX pulses the full load On - Off. TTC40FX adjusts the mean
power output to the prevailing power demand by proportionally adjust-
ing the ratio between On-time and Off-time. The cycle time (=the sum
of On-time and Off-time) is adjustable 0 - 60 seconds.
TTC40FX has zero phase-angle firing to eliminate RFI.
Start-up and fault finding
1. Check that all wiring is correct.
2. Measure the resistance between terminals L1out - L2out, L1out -
L3out and L2out -L3out:
At 230V phase-phase voltage: 6.4Ω<R<64Ω.
At 400V phase-phase voltage: 11.5Ω<R<115Ω.
3. Connect supply voltage and set the input signal to 10V DC. The
LED on the TTC40FX should be continuously on. Set the control
signal to 0V DC. The LED should be continuously off. At inter-mediate
positions the LED will pulse On-Off as the TTC40FX pulses current to
the heater. The pulse cycle period is approx. 6 - 60 seconds depend-
ing on the setting of the CT-potentiometer. Check with a clamp-on
ammeter that current is flowing to the heater.
Low Voltage Directive (LVD) standards
This product conforms to the requirements of the European Low
Voltage Directive (LVD) 2006/95/EC through product standard
EN 60730-1.
EMC emissions & immunity standards
This product conforms to the requirements of the EMC Direc-
tive 2004/108/EC through product standards EN 61000-6-1 and
EN 61000-6-3.
RoHS
This product conforms with the Directive 2011/65/EU of the European
Parliament and of the Council.
Contact
AB Regin, Box 116, 428 22 Kållered, Sweden
Tel: +46 31 720 02 00, Fax: +46 31 720 02 50
www.regincontrols.com, info@regin.se
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