Manual - TC.P Quadro
Control
2016-08-05
81/330
V04.52
3
3.3.6.3. Indications via digital outputs (relays)
The internal system status of the TopCon power supply is output to the
exterior via the relay connections. External signalling devices or a supe-
rior system controller that monitors several devices can be connected
via the relays. The device state can then be evaluated.
State
RELAY 1
RELAY 2
RELAY 3
“OK/ALARM”
“RUN”
“WARN”
Power UP
OPEN
OPEN
OPEN
STOP
OPEN
OPEN
OPEN
READY
CLOSED
OPEN
OPEN/CLOSED
1
RUN
CLOSED
CLOSED
OPEN
warn
CLOSED
CLOSED
CLOSED
Error
OPEN
OPEN
OPEN/CLOSED
1
FATAL ERROR
OPEN
OPEN
CLOSED
Table 49
Indication of the system status using relays (interface X105).
1
Closed if there is a warning, otherwise open.
3.3.6.4. Monitoring function - current monitoring concept
The current limiting is intended on the one hand to protect the device
(above all the semiconductors) against damage, on the other hand cer-
tain monitoring functions can also be used to protect the load connect-
ed.
Monitoring
Protection in
case of
Implementa-
tion
Time range
Short-circuit monitoring by
IGBT driver
Transformer satura-
tion,
hardware faulty
Hardware
level fixed
3
s
– 6
s
Monitoring of I
Primary
Transformer satura-
tion
Hardware
10
s
– 50
s
Monitoring of I
Secondary
High load current
peaks
(electrical power
supply or load pro-
tection)
Software
50
s
– 10 ms
I
2
t algorithm I
Secondary
Temporary overload
(electrical power
supply or load pro-
tection), “fuse sub-
stitute”
Software
10 ms
– as
req.
1
Current limiting by the con-
troller
Output current too
high (load protec-
tion)
Software
1 ms
–
Table 50
Properties of the internal monitoring functions in the TopCon.
1
The maximum value is defined by the specific I
2
t value