Wiring
akYtec GmbH · Vahrenwalder Str. 269 A · 30179 Hannover · Germany Tel.: +49 (0) 511 16 59 672-0 · www.akytec.de
11
5.3
Outputs
Optional outputs (see Table 2.4):
–
Relay
–
NPN transistor
–
TRIAC
–
Solid state relay
–
Analog 4-20 mA
–
Analog 0-10 V
5.3.1
Relay outputs (R)
Fig. 5.2 Relay output
5.3.2
NPN transistor (T)
The NPN transistor outputs of T type are designed to control low voltage relay up to 60 V
DC / 400 mA.
►
NOTICE
As a precaution against inadvertent current reversal on the output, a parallel diode
(Imax = 1 A, Umax=100 V) is usually included in the output circuit.
Fig. 5.3 NPN transistor outputs
5.3.3
TRIAC (C)
The resistor R1 (5…20 kohm) is used to limit the load current.
►
NOTICE
To protect thyristors and TRIACs from overload a RC protect circuit should be
connected in parallel to load: R2 (47…68 ohm) and C1 (0.1 x 630 V).
Fig. 5.4 Power TRIAC connection
5
4
3
5
4
3
+
_
K1
VD1
5
4
3
