Connecting Pulse Inhibition; Connecting Analog Setpoint Input; Connecting Control Input For Switch Operation - AEG Thyro-A Operating Instructions Manual

5.4 Connecting pulse inhibition

Certain errors (see page 24, Error and status messages) trigger pulse
inhibition internally. Triggering of pulse inhibition can be configured.
Preparing to use pulse inhibition
• Switch off mains supply and secure against accidentally being
switched back on.
• Replace bridge from X2.1 to X2.2 with a switching contact
(low-current contact).
Activating pulse inhibition (with device switched on)
• Open switching contact.
> Pulse inhibition is activated.
> Power unit is no longer addressed

5.5 Connecting analog setpoint input

The setpoint input (terminals X2.3 ground – X2.4 + 1.5mm
is suitable for process controllers with output signals from
0(4) – 20mA, 0-5V, 0-10V.
• Switch off mains supply and secure against accidentally being
switched back on.
• Configure analog setpoint input (see page 43, Live zero and setpoint
input range).
• Connect process controller (output signals of 0(4) - 20mA, 0 - 5V,
0 - 10V) to terminal X2.3 (ground) and X2.4 (+).

5.6 Connecting control input for switch operation

With a purely ohmic resistance load terminal X2.7 can be used as an
additional digital „setpoint input" (24V DC) so that Thyro-A, for exa-
mple, can be triggered by a 2 point controller. In addition the potenti-
ometer R201 must be turned to the left stop (angle 1 is deactivated)
and Thyro-A then switches into a faster TAKT operation with T
periods without SST (Soft-start). At a signal level of > 3 volts at termi-
nal X2.7 Thyro-A switches on (switch operation).
• Switch off mains supply and secure against accidentally being swit-
ched back on.
NOTE
The contact for the activation of the pulse inhibition is to
be set up as a low-current contact.
63
grid 3.5)
2
EN
= 5
0