Honeywell R0512 manual System Alarms, Benefits, System alarms

ALARM HANDLING EXCEL 50/100/500/600/800

Operational status All datapoints can be switched from the 'automatic' to the 'manual' operational mode. Each time the operating mode is changed, irrespective of the direction involved, a critical alarm signal is generated. Both alarm signal texts are preprogrammed and require no input from the user.

Remote (V2.0.x) (not with Excel 100C) If a manual override control is changed on a Distributed I/O module, an alarm “overr.switch_manu” or “overr.switch_auto” is generated and the “manu” value is transmitted.

Alarm suppression in manual mode Under controller firmware 2.06.02 and higher, the following datapoint alarms can be suppressed for as long as the corresponding datapoints are in the 'manual override' mode:

• min. and max. limit alarms (of analog datapoints, only);

• status alarms (of digital datapoints, only).

This alarm suppression is activated during CARE engineering by inserting the "at" sign ("@") at the beginning of the descriptor text of the pseudo datapoint "Startup".

Benefits:

As long as this alarm suppression is in effect, the repair or replacement of defective and/or malfunctioning (flickering) inputs (resulting e.g. from sensor breakage, sensor short-circuiting, defective alarm switches, etc.) can be performed while the corresponding datapoint is in the "manual override" mode.

NOTE: Only when using XFI 2.1.0 SIM1 will the event behavior and visualization

behavior be identical to that of Honeywell Deltanet controllers.

System Alarms

			Operating errors that occur in a control unit or during communication with other
			Excel 50/100/500/600/800 units are recognized and displayed by the computer
			module. These alarm signals can relate, for example, to a defective module, the
			need to change the buffer battery (data protection), or the presence of one digital
			output module too many (maximum 10). These alarm signal texts are
			preprogrammed. They are always critical alarms.
			Table 20. System alarms
Alarm	alarm text	cond.	cause/reason
no.	English)	code #
1	AI Module Defect	25	Maximum conversion time was exceeded while testing ADC (defect on an AI card).
2	AI 0 Volt Error	24	While measuring GND voltage on an AI card, one value greater than 0.5 V was measured
			(AI card defect).
3	AI 5 Volt Failure	23	While measuring the 5-V reference voltage on an AI card, one value greater than 5 V or
			smaller than 4.5 V was measured (AI card defect or incorrect power supply of AI card).
4	MAX 2 alarm	2	Alarm limit for AI-, PA points
5	MAX 2 normal	76	Alarm limit for AI-, PA points
6	MAX 1 alarm	1	Alarm limit for AI-, PA points
7	MIN 2 alarm	4	Alarm limit for AI-, PA points
8	MIN 2 normal	78	Alarm limit for AI-, PA points
9	MIN 1 alarm	3	Alarm limit for AI-, PA points
10	MAX 1 normal	75	Alarm limit for AI-, PA points
11	MIN 1 normal	77	Alarm limit for AI-, PA points
			1) After starting the Field I/O Task with the parameter "INIT", the default datapoint
12	Alarm memory full	22	description couldn't be installed because USX didn't provide enough storage space for
			sending CNAP telegrams.
			2) Alarm send buffer full.
13	Alarm	6	Alarm condition control for DI , PD points.

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