JUMO 709051, Operating Manual, Page: 79 / 92

V1.00/EN/00741192/2021-03-30 [IPC 300] 79
8 Error messages and alarms
Cyclical
appearance The symbols for input, subordinate control loop, and operating mode are dis-
played alternately in the info line together with error messages or information
about special statuses.
v
Chapter 4.1.2 "Appearance of measured values"
Examples
Error message Cause Remedy
Min alarm The value has dropped below the set limit
value for the min. alarm
-
Max alarm The set limit value for the max. alarm has
been exceeded -
Load error Break or short-circuit of a load resistance.
v
Chapter 6.2 "Detection of load
faults"
- Replace faulty heating element.
Load failure ext.
current sensor 1 The load monitoring via external current
sensors has detected a break in the load
resistance in the reported branch.
Load failure ext.
current sensor 2
Load failure ext.
current sensor 3
Teach-In still
missing Reminder that the load monitoring is still
inactive because the Teach-In has not yet
been performed.
- For "manual" Teach-In: Perform
Teach-In in operating level or
manual mode!
- For "Automatically once" or "Au-
tomatically (cyclically)" Teach-In:
Increase setpoint value so that
the minimum output level of
30% is achieved for a Teach-In.
v
Chapter 6.2 "Detection of load
faults"
Fuse breakage
(red fuse LED is lit) Semiconductor fuse defective
v
Chapter 3.4.3 "Replacing the
two semiconductor fuses"
- Check wiring
- Check the wire fuse for the load
circuit
IGBT breakage IGBT defective The device must be returned to JUMO
for repair.
- Return the device