ABB RELION 620 Series Technical Manual page 632

Section 6
Supervision functions
6.8
6.8.1
6.8.2
6.8.3
6.8.4
626
Runtime counter for machines and devices OPTM
Identification
Function description
Runtime counter for machines and
devices
Function block
GUID-C20AF735-FF25-411B-9EA6-11D595484613-ANSI V2 EN
Figure 319: Function block
Functionality
The generic operation time counter function OPTM calculates and presents the
accumulated operation time of a machine or device as the output. The unit of time for
accumulation is hour. The function generates a warning and an alarm when the
accumulated operation time exceeds the set limits. It utilizes a binary input to indicate the
active operation condition.
The accumulated operation time is one of the parameters for scheduling a service on the
equipment like motors. It indicates the use of the machine and hence the mechanical wear
and tear. Generally, the equipment manufacturers provide a maintenance schedule based
on the number of hours of service.
Operation principle
The function can be enabled and disabled with the Operation setting. The corresponding
parameter values are "Enable" and "Disable".
The operation of the generic runtime counter for machines and devices can be described
using a module diagram. All the modules in the diagram are explained in the next sections.
IEC 61850 IEC 60617
identification identification
MDSOPT OPTS
1MAC504801-IB E
ANSI/IEEE C37.2
device number
OPTM
620 series ANSI
Technical Manual