Dedicated Input/Output Signals; Consumption Degree Calculation Function - Mitsubishi Electric CR800-D Series User Manual

15. Dedicated input/output signals

This section describes dedicated input/output signals related to the predictive maintenance function.
To use those signals, from the Predictive Maintenance screen, click the [Setting] - [Signal] screen and
assign a signal number to the respective parameter.
For the setting procedure for signal numbers, refer to "3 Startup and initial settings, 3.2.3 Setting signals".
For details on dedicated input/output signals, refer to the separate volume, "CR800 Series Controller
INSTRUCTION MANUAL Detailed explanations of functions and operations".
Note 1) Set the signal numbers according to the system to be used. The range of values that can be set in
the parameters are 0 to 255, 2000 to 5071, 6000 to 8047, and 10000 to 18191.

15.1. Consumption degree calculation function

It is possible to check the status with dedicated output signals in case the remaining time up to the
recommended replacement/maintenance time of each part or the remaining time up to the specified
overhaul time exceeded the warning occurrence detection level specified by the "PMWNGDAY" parameter.
Also, you can reset the consumption degree [%] of the predictive maintenance function using a dedicated
input signal.
Caution
<Dedicated warning output>
Parameter
Category
name
Input
PMSIGMNT
Output
Input
PMSIGOH
Output
Dedicated input/output signals 178
• If the predictive maintenance function is disabled, the output is always OFF.
• For parts for each joint axis, if even one of the axes exceeds the warning
occurrence detection level, the signal becomes ON.
• In case of maintenance part (grease, timing belt), the signal is output only when
the PMRPTMNT parameter's Element 2 is ON (output), and if the predictive
maintenance function is disabled, the signal is always OFF.
• In case of an overhaul part (reduction gear, bearing, ball screw, ball spline) and
servo ON time, the signal is output only when the PMRPTOH parameter's
Element 2 is ON (output), and if the predictive maintenance function is disabled,
the signal is always OFF.
Function
−
Maintenance warning of predictive/preventive
maintenance
(maintenance part)
Outputs the effect that the remaining time (remaining
recommended maintenance time) of the mechanism
total (maintenance parts) exceeded the warning
occurrence detection level.
−
Maintenance warning of predictive/preventive
maintenance
(overhaul part)
Outputs the effect that the remaining time (remaining
recommended maintenance time) of the mechanism
total (overhaul parts) exceeded the warning
occurrence detection level.
(Note 1)
Signal
level
Signal number at factory
default
CR800-R/Q CR800-D
-1 (No -1 (No
−
meaning), meaning),
－
-1 -1
-1 (No -1 (No
−
meaning), meaning),
−
-1 -1