Device functions
Page 48
RES-5009
Version 1
9.14
System monitoring/alarm output
To increase the operational safety and to avoid incorrect seals, the RESISTRON
®
Temperature Control-
lerRES-5009 has a differentiated error message and diagnosis. Both the outer wiring and the internal system are
monitored by hardware and software measures. The system monitoring supports the operator in localising a
defective operating status.
A system fault is reported or differentiated through the following elements.
A.)
Red “ALARM” LED at the controller lights up with three statuses:
1.
Blinks quickly (4 Hz):
The AUTOCAL function must be carried out
(Error Nos. 8 + 9, or 104…106, 211, 302, 303).
2.
Blinks slowly (1 Hz):
System configuration is not correct and therefore the zero calibration (AUTOCAL function) carried out was not
successful (
section 8.2 "Device configuration" on page 21).
(Error nos. 10…12, or 111…114)
3.
Lights up permanently:
Faults prevent startup
(Error nos. 1…7, or 101…103, 107, 108, 201…203, 307, 308, 9xx).
These are usually external wiring errors.
B.)
Alarm relay (relay contacts terminals 12+13+14):
In the factory setting, the alarm relay is:
•
NOT ACTIVE
in the operating states “Blinks quickly” (A.1) or “Blinks slowly” (A.2.). The alarm relay is activated,
however, if a START signal is given in one of these states.
•
ACTIVE
in the operating state “lights up permanently” (A.3.)
CAUTION
If the alarm relay is configured differently than in the factory setting (
tion of the alarm relay" on page 23), these statuses are inverted.
C.)
Output of the error numbers over the CAN protocol
If there is an error, Alarm will be set active (AL bit). The error number is displayed in CAN protocols.
D.)
Output of the error number via actual value output 0…10 VDC (terminal 17+7):
As a temperature display is not required in case of a fault, the actual value output is used to output the
error in case of alarm.
• 13 voltage levels are output within the 0…10 VDC range. One error number is assigned to each voltage level.
(
section 9.15 "Error messages" on page 49).
• In case of error nos. 104…106, 114, 211, 302, 303 (AUTOCAL must be carried out) and in case of error nos.
111…113, (system configuration is not correct), the actual value output alternates between the voltage value
that corresponds to the error and the final value (10 VDC, i. e. 300 °C or 500 °C) at 1 Hz. If the “START signal
is given, the voltage value does not alternate any more.
• An alarm message can be reset by a reset request or by switching the controller off and on.
Invalid alarm messages can occur when the controller is switched off due to the undefined operating status. To
avoid false alarms, this must be taken into account during evaluation in the higher-level controller (e. g. PLC).
Summary of Contents for RESISTRON RES-5009
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