PTE-50-CET
Sheet 39
1. When there is a voltage between the common tap (black) and the voltage tap (red). This
voltage can be between 5 to 250 V, ac or dc. This input tap is protected with a fuse clearly
marked on the front panel.
2. When there is a closed, voltage free, contact between the common tap (black) and the contact
tap (green). This input tap is protected with a fuse clearly marked on the front panel.
NOTE
: Be sure that, when connecting a signal to the green tap, it is voltage free. If not, the
protection fuse will break immediately.
4.5.
COMMUNICATION IN BUS-PTE
4.5.1. EVENTS IN BUS-PTE
The PTE range equipment has been designed in such a way that the test equipments can be
interconnected via the BUS-PTE connector, thus forming a stronger system when testing. The
equipment not only can receive commands by software, but can also send information about its own
status through determined signals, called EVENTS. Activation and deactivation of the
Signal Monitor
,
Output On
or
Off
, a
Step to 2
nd
Value
in amplitude and/or Phase, etc., are some examples of these
mentioned EVENTS
In a PTE-50-CET, these events can be:
a) Positive events:
•
Monitor active in a PTE equipment.
•
Output active in a PTE equipment.
•
An output value step to a second level, higher in value that the first one.
•
Phase angle step to a second level, higher in value that the first one.
b) Negative events:
•
Monitor becomes non-active in a PTE equipment.
•
Equipment output is cut off.
•
An output value step to a second level, lower in value that the first one.
•
Phase angle step to a second level, lower in value that the first one.
In any case, the documentation supplied with a PTE equipment, gives information about the particular
events transmitted to the BUS-PTE by the particular unit.
4.5.2. EVENT TRANSMITTED BY A PTE-50-CET
A PTE-50-CET sends to the BUS-PTE the following events:
a) Positive events:
•
Output
ON.
•
Step to 2
nd
Value
(voltage/current), higher than the actual.