Regin TTC25 Anleitung

INSTRUCTION
EN
TTC25
i i
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
TTC25 is a proportional, 3-phase electric heating controller with
automatic voltage adjustment. The controller operates through step-
less, time-proportional control, where the relationship between the
on-time and off-time is based on the current heat demand.
The controller is primarily intended for use together with Regin's
NTC series of sensors for either supply temperature control or room
temperature control. During room temperature control, the supply air
temperature can be provided with a minimum or maximum limitation.
TTC25 can control both symmetrical Y-connected 3-phase heaters
and symmetrical or asymmetrical Delta-connected heaters.
The controller is only intended for control of electric heating. The
control principle makes it unsuitable for control of motors or lighting.
TTC25 is intended for DIN-rail mounting.
Technical data
Supply voltage 3-phase, 210...255 / 380...415 V AC 3-phase,
50...60 Hz with automatic voltage adaptation.
Max. current: 25 A/phase.
Max. load 3300 W/phase at 230 V line voltage (25 A)
5750 W/phase at 400 V line voltage (25 A)
Min. load 530 W/phase at 230 V line voltage (4 A)
920 W/phase at 400 V line voltage (4 A)
Protection class IP20
Ambient temp. 0...40°C, non-condensing
Installation
Mount TTC25 on a DIN-rail in a cabinet or other casing.
Mount the controller vertically with the text right side up.
NOTE: At full power, TTC25 will emit approx. 45 W of excess
heat which must be properly dissipated!
Wiring
Connect the supply voltage to the terminals L1in, L2in and L3in.
1 2 3 4 5 6 7 8 9
L1 L2 L3 L3 L2 L1 1 1 3
Figure 1: Wiring of supply voltage and load
NOTE: The controller must be grounded and the supply
voltage must be interlocked via a high temperature limit switch!
Load
Use terminals L1out, L2out and L3out.
Resistive 3-phase heater without neutral connection.
Main sensor and external setpoint (figures 2-6)
Use terminals 1 and 4 (polarity insensitive). Low voltage.
NOTE: Terminals 2 and 3 are internally connected and are
used to simplify wiring when using an external setpoint
potentiometer. Switch 1 is used to select internal or external
setpoint.
TTC25
TG-R5xx
1 2 3 4
TG-R6xx
1
2
Figure 2: Wiring of room temperature sensor TG-R5xx
or TG-R6xx when using internal setpoint
1 2 3 4
TG-R4xx
1
3
Figure 3: Wiring of TG-R430 sensor as external sensor and
setpoint adjustment for room control
1 2 3 4 TG-K3xx
TG-G1xx
Figure 4: Wiring of floor or duct sensor when using
internal setpoint
TG-K3xx 1 2 3 4
TG-R4xx
TG-G1xx
2
3
Figure 5: Wiring of an external, separate sensor and TG-R4xx as a
setpoint device only
TG-K3xx 1 2 3 4
TBI-xx
TG-G1xx
1
2
Figure 6: Wiring of an external, separate sensor and a TBI-xx
potentiometer as a setpoint device
1