Dynacord DPA 8150, User Manual

Page: 19 / 46

Figure 6.7: Sample application of a control input
Use as a control output
Connections 1, 2, and 3 are designed as open collector outputs that have a high resistance
when not active (OFF/inactive). When active (ON/active), the outputs are closed to ground.
LEDs, indicator lamps, and relays can be activated directly. The reference connection VCC can
be used to supply the externally connected elements.
Figure 6.8: Sample application of a control output
!
Caution!
The maximum total current at the VCC output is 100 mA.
READY contact
The CONTROL PORT on the DPA output stage features a READY potential-free changeover
contact. This changeover contact can be used to signal to other devices that the DPA output
stage is ready for operation, or that faults have occurred. The following table shows the
possible status of the READY contact.
Status Switch position Description
Ready for operation (=
ready) The voltage supply is functioning,
the boot process of the device has
completed, and there are no faults
in the system. The relay has been
activated.
Not ready The voltage supply is off/interrupted
or the boot process of the device
has not yet completed, or there is a
fault in the system. The relay has
dropped/is without power.
Table 6.1: READY contact
The changeover contact position for the “Not ready” status is displayed on the device. The
IRIS-Net software allows the user to configure the fault types for which the changeover
contact should switch over and signal the status “Not ready”. Use of the “Not ready” status
(standby current principle) is recommended when integrating the DPA output stage into
hazard alert systems.
PROMATRIX 8000 POWER AMPLIFIER Safety information | en 19
User manual 19-Aug-13 | 03 | F01U217494