Limited Automatic Reset (ALM-06 = -1000 to -1)

In the event of a

the chiller common alarm output will raise an alarm and the chiller output module will start the chiller shutdown procedure. The sequencer strategy will remove the chiller from its sequence and will start a backup chiller.

When the alarm condition has been solved, then the alarm returns to normal and the chiller common alarm output is also reset.

The negative value of parameter ALM-06 is the number of attempts of auto reset until a manual reset is required.

Depending on the current value of the parameter automatic reset function (ALM-06 = -1000…-1), the chiller becomes directly available for operation (automatic). With every “Limited Auto Reset”, the new value of DISP-11 will be DISP-11 + 1 until DISP-11 is = 0 and the manual reset function is active.

After reset, application download or parameter change of ALM-06, the value of ALM-06 will be transferred to DISP-11.

After reset or change of parameter ALM-06, the function “Limited Auto Reset” is started again.  

The reset function as defined by parameter ALM-06 is valid for all alarm types.

Table 14.   Alarm reset

ALM-06

Alarm reset

= 1

Automatic reset

= 0

Manual reset

<0

Limited automatic reset


Table 15.   Parameter List

Description

Value Range

Default Value

Unit

ALM-06: reset

<0 =limited auto

0 = manual

1 = auto

-1000…1

0

-

DISP-11: ALM-06 countdown

-

-

-