8 fault messages and alarms – JUMO 709062 TYA 202 - Three-Phase Power Controller Operating Manual User Manual
Page 96
8 Fault messages and alarms
94
2012-12-31/00561073 [SCR power switch TYA202]
Slave: limit.
active high temp.
Device temperature is higher than 105 °C
Device too hot!
Power is reduced.
(limited power due to excess temperature)
- Ensure adequate ventilation
- Reduce load current
- Use power controller with
higher maximum load current
Slave: supply volt.
too low
Supply voltage is not within specified toler-
ance range
v Chapter 10.1 "Voltage supply, load
Check nominal voltage of the de-
vice type
Slave: supply volt.
too high
Supply voltage is not within specified toler-
ance range
v Chapter 10.1 "Voltage supply, load
Check nominal voltage of the de-
vice type
Slave: temp. drop in
supply
Dangerous temporary equal proportion for
transformer loads has been detected.
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.
Open contact between terminal 7
and 8 at screw terminal X_2.
Inhibit by ext. inhibit The firing-pulse inhibit has been triggered via
an interface.
v Interface manual "Ext. in-
hibit"
Soft start phase
This display appears until the soft start has
been completed.
See "Soft start duration" on
page 53.
Current limiting
active
The required output level causes an exces-
sive load current and is therefore limited to
the set value.
See "Current limiting" on
page 53.
Resistance limitation
active
The desired output level leads to current/volt-
age values that are limited to the set load re-
sistance value.
The output level is limited to the permissible
resistance to prevent the heating element
from overheating.
Fault message
Cause
Remedy