Operating Modes; Output Control And Monitoring - Caen A1539 Quick Start Manual

CAEN
Electronic Instrumentation
4.

Operating modes

The Mod. A1539, AG539, A154X, AG54X boards can be controlled, either locally or remotely, through
the SYSTEM software interface. For details on SYSTEM operation, please refer to the User's Manual of
this product. The following sections contain a description of commands available for the board control
and status monitoring.

Output control and monitoring

For each output channel, it is possible, through the system, to access the following parameters:
CHANNEL NAME (settable):
V0SET (settable):
I0SET (settable):
V1SET (settable):
I1SET (settable):
RUp (settable):
RDWn (settable):
TRIP (settable):
SVMAX (settable):
VMON (monitor):
IMON (monitor):
STATUS (monitor):
PW (ON/OFF):
POn (EN/DIS):
PDwn (Kill/Ramp):
TripInt:
TripExt:
A1539, AG539, A154X, AG54X Power Supply Boards
descriptive name for the relevant channel
the first of the two allowed voltage programmable values.
the first of the two allowed current limit programmable values
the second of the two allowed voltage programmable values
the second of the two allowed current limit programmable values
the Ramp-Up parameter value, i.e. the maximum voltage programmable increase
rate.
the Ramp-Down parameter value, i.e. the maximum voltage programmable
decrease rate.
the TRIP parameter value, i.e. the maximum time an Over Current condition is
allowed to last.
the maximum voltage value programmable for the channel. If the value set as
SVMAX is less than the current value of the V0SET/ V1SET parameter, the latter
will automatically decrease to the SVMAX value.
monitored voltage value
monitored current value
it displays the channel status.
the Power parameter shows the ON/OFF channel status. As this parameter is set
ON, the channel is switched on (if the INTERLOCK is not active and if the channel is
enabled either locally or remotely) highlighted in green when channel ON; onstate
= ON; offstate = OFF
Power-On option, which can be enabled or disabled. If this option is enabled, at
Power-On or after a Restart each channel is restored in the same condition
(defined by the Power parameter) it was before the Power-Off or Reset. If this
option is disabled, at Power-On or after a Restart all the channels are off,
independently from the condition in which they were before the Power-Off or
Reset ; onstate = Enabled; offstate = Disabled
Power-Down option, which can be set as KILL or RAMP. It affects the way the
channels react at a Power-Off command caused by a TRIP condition. If the KILL
option is selected, the relevant channel will be switched off at the maximum rate
available. If the RAMP option is selected, the voltage will drop to zero at a rate
determined by the value of the Ramp-Down parameter programmed for that
channel;
onstate = Ramp; offstate = Kill
2N-bit word (hexadecimal) maximum 16 lines, where N is the number of the
board's Internal Trip Bus lines. Bits [0;N-1] allow the channel to sense the trip
status from the corresponding lines when set to one; in the same way, bits [N;2N-
1] allow the channel to propagate the trip status over the Trip Bus: bit N on line 0
and so on (see SY4527 User's manual).
Must be set in the 0÷255 range (hexadecimal). Bits [0;3] allow the channel to
sense the trip status from the corresponding lines when set to one; in the same
way, bits [4;7] allow the channel to propagate the trip status over the trip bus: bit
4 on line 0 and so on (see SY4527 User's manual).
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