JUMO 709040 TYA-110 thyristor power unit Operating Manual - Manual (Page 43)

Power units 02.06 43
6 Settings
6.4 Control inputs
The internal switches S1, S2, S16, S19, S20 can be used to adapt the thyris-
tor power unit to suit the available control signal (controller output signal).
There are separate voltage and current control inputs. The current inputs (+,-)
are designed for a differential current signal, i.e. they can have a common po-
tential that is up to 10V above or below the ground reference potential (
⊥).
If the current and voltage inputs are used simultaneously, they have an addi-
tive effect. Both analog and logical controller output signals may be used.
Analog
control inputs The thyristor power unit can be operated by the following signals (for analog
power regulation):
- voltage signal (Terminals 3, 4)
- current signal (Terminals 1, 2)
- 5 k
Ω potentiometer (Terminals 3, 4, 5)
A 10 V source is provided at Terminal 5 for use with a potentiometer. The
switch settings are the same as for a 0 — 10 V signal.
Control signal Internal switch
Signal start Signal end S1 S2 S16 S19 S20
0 mA 20 mA 1 0 0 1
4 mA 20 mA 0 0 0 2
0 V 10 V 1 0 0 1
2 V 10 V 0 0 0 2
0 V 5 V 1 0 1 1
1 V 5 V 0 0 1 2
logic levels 0/10V 0/5V, 0/20mA or
floating contact 0 1 1 2 1