JUMO TYA 202, Operating Manual, Page: 91 / 108

2011-07-01/00561073 [SCR Power Controller TYA202] 89
8 Fault messages and alarms
Cyclical
representation The symbols for input, cascade control and operating mode are displayed al-
ternately in the info line together with error messages or information about
particular statuses.
v
Chapter 8 „Fault messages and alarms“
Examples
Error message Cause Remedy
Limit value monit.
min. value reached The value has gone below the set limit
value for the min. alarm -
Limit value monit.
max. value reached The set limit value for the max. alarm has
been exceeded -
Fault at
connected load Break or short-circuit of a load resistor.
v
Chapter 6.1 „Detection of load faults“
Replace defective heating ele-
ments.
Malfunction
Fuse break
(red LED fuse is lit) 1. Semi-conductor fuse defective
v
Chapter 8.2 „Replace defec-
tive semi-conductor fuse“
2. No voltage at terminal U1 - Check wiring
- Check the line fuse for the
load circuit
Malfunction
SCR breakage SCR defective The device must be returned to
JUMO for repair.
h
Return the device
SCR
short-circuit SCR defective The device must be returned to
JUMO for repair.
Return the device
Attention!
High temperature Device temperature is higher than 100°C - Ensure adequate ventilation
- Reduce load current
- Use SCR power controller
with higher maximum load
current
Limitation is active,
high temperature Device temperature is higher than 105°C
device is too hot, power is reduced! - Ensure adequate ventilation
- Reduce load current
- Use SCR power controller
with higher maximum load
current