Carlo Gavazzi PQT-90 - Manual (Page 14)

❑
Digital output setup
Where “DO...” shows the module and output to which the
window refers. Digital outputs are referred to as follows:
C0 OUTPUT: SLOT C digital output, channel 1
C1 OUTPUT: SLOT C digital output, channel 2
D0 OUTPUT: SLOT D digital output, channel 3
D1 OUTPUT: SLOT D digital output, channel 4
[1] Select the digital output mode:
“Pulses”: sets the parameters for the pulse output. It’s possi-
ble to retransmit the total or partial energy by means of puls-
es. Selecting one of the available tariffs (from 1 to 4), the pulse
output will be activated only when metering the energy referred
to the selected tariff.
“Alarm”: allows the user to activate a static or a relay out-
put when an alarm condition is detected.
“Diagnostics”: in a 3-phase system, unbalanced load with
neutral, this function checks the presence of the neutral
connection. If the connection to the neutral is not detected,
an alarm is activated.
PQTSoft Remote
Configuration
Open collector outputs
29
46
25
PQTSoft Remote
24
Configuration
8
1
“Remote control”: makes it possible to control the digital
outputs by means of the RS485/RS232 serial port instead of
using the instrument. The outputs can be activated by
means of a PC or PLC by means of specific commands.
[2] Selects whether the event logging in the PQT-90 is to be
activated or deactivated.
❑
Digital output setup: pulses
[1] Chooses the type of energy to be retransmitted by
means of pulses.
[2] Selects the type of meter to be retransmitted by means
of pulses.
[3] Selects the pulses amount (that is: how many pulses are
needed for 1 kWh from 1 to 1000 pulses per kWh?).
2
1
3
2