JUMO TYA 202 - Page 94

8 Fault messages and alarms
92 2011-07-01/00561073 [SCR Power Controller TYA202]
Slave: Attention!
high temp.
Device temperature is higher than 100°C - Ensure adequate ventilation
- Reduce load current
- Use SCR power controller
with higher maximum load
current
Slave: Limit.
active, high temp.
Device temperature is higher than 105°C
Device too hot!
Power is reduced.
- Ensure adequate ventilation
- Reduce load current
- Use SCR power controller
with higher maximum load
current
Slave: Supply volt.
too low
Supply voltage is not within specified tol-
erance range
v Chapter 10.1 „Voltage supply, load
current“
Check nominal voltage of the
device type
v Chapter 1.3 „Order specifi-
cations“
Slave: Supply volt.
too high
Supply voltage is not within specified tol-
erance range
v Chapter 10.1 „Voltage supply, load
current“
Check nominal voltage of the
device type
v Chapter 1.3 „Order specifi-
cations“
Slave: temporary
drop in supply
Temporary equal proportion for trans-
former loads has been detected.
v Chapter 5.1.5 „Monitoring“
Ensure stable mains supply.
Inhibit by
Inhibit input
A firing-pulse inhibit has been triggered
via a potential-free contact.
No power from the power controller.
v Chapter 3.3 „Connection di-
agram“
Open the contact between ter-
minal 7 and 8 on screw terminal
X_2.
Inhibit by
ext. inhibit
The firing-pulse inhibit has been triggered
via an interface.
v Interface manual "Ext. inhib-
it"
Soft start phase This display appears until the soft start
has been completed.
v Chapter 5.1.2 „Power con-
troller“
-> Soft start duration
Current limitation
active
The required output level causes an ex-
cessive load current and is therefore lim-
ited to the set value.
v Chapter 5.1.2 „Power con-
troller“
-> Current limiting
Resistance
limitation active
The desired output level leads to current/
voltage values that exceed the set load
resistance. The output level is limited to
the permissible resistance to prevent
overheating.
v Chapter 5.1.2 „Power con-
troller“
->
Error message Cause Remedy