Alarms; Alarm Types; Remote Control; Via Digital Interface - Elektro-Automatik EA-PSI 800 R Bedienungsanleitung

Handling the device
4.6.3 Menu item „Communication"
This menu item defines settings for the communi-
cation via the digital interface card, if equipped. The
settings are explained in detail in the user guide
that belongs to the interface cards. Only a few or no
settings at all are required. It depends on the type of
the card.
4.6.4 Menu item „Options"
The item Options provides a possibility to reset the
device to default settings and to lock the control panel
with a pin code.
Reset configuration
If YES is selected at the confirmation prompt
you sure?" all editable parameters are reset to their
default values. With selection NO, all settings remain
unaltered.
After a configuration reset, the value
the selected voltage profiles has to be submitted
once again.
Lock setup
After entering a 4 digit PIN code with the arrow but-
tons, the control panel is locked, except the unlock
button. The four numbers can be 0 - 15, which results
in 16 = 65536 combinations. Unlocking is done the
4
same way, by entering the PIN code again. If the PIN
code is lost, the device can only be accessed again
by doing a „Reset configuration". See above.
Remind, that a configuration reset will reset all settings
to their default values!
4.7

Alarms

The device will indicate different alarms in the display
using the symbol and an abbreviation, as well as
the output pin ERROR on the analog interface.
Those alarms have to be acknowledged by the user
with button . Some alarms (OT, OVP) will switch
off the output, which can be switched on again after
acknowledgement.
The only exception is the OT alarm, where the output
can automatically switch on again after the device has
cooled down, if in menu
„OT disappear" was set to
Instruction Manual
PSI 800 R Series
„U output" of
„General settings" the option
„auto ON".
4.7.1

Alarm types

OT - Overtemperature shutdown due to overheating
OVP - Overvoltage shutdown due to internal or ex-
ternal cause
EXT - Remote control error
Notes:
• If OT or OVP
matter if manual or remote control was active
• The alarm EXT
to switch to remote control by analog interface while
one of the voltage profiles 2-5 resp. 2-6 was select-
ed. In order to switch to analog remote control, first
select voltage profile 1 via
„Are
section 4.2.
5.

Remote control

5.1

Via digital interface

With the optionally available, digital interface cards
(USB, RS232 or CAN) the device can be completely
remotely controlled and monitored. For details of
features and technical specifications see the user
manual of the interface cards.
With CAN, multiple power supplies can be networked.
5.2

Via analog remote control

Set values that control output voltage and current
can be given to set value inputs VSEL and CSEL with
control voltages of 0...10V or 0...5V, depending on
the selected control voltage range (see section „4.6
The setup menu").
The actual output values of voltage and current are
put out as monitoring voltages to outputs VMON and
CMON with 0...10V or 0....5V, depending on the se-
lected control voltage range.
Before controlling the device remotely is has to be
switched to remote control by pin 7 „Remote". Both
values must be given. If only one of both is going to
be adjusted, the other one can be tied to VREF in
order to be 100%.
Remote control by analog interface is indicated in the
display with the status text „extern".
Note: the digital inputs are not CMOS compatible.
In order to pull those down to GND, a low-resistive
contact or switch like from a relay or transistor etc. is
required. Digital outputs of a PLC or similar may not
suffice here. Consult the technical documentation of
your controlling hardware.
occurs, the output is switched off, no
shows that an attempt was made
button. Also see
Date: 09-29-2014
EN
27