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Crane Maintenance Monitor
This function counts the number of Run commands or brake release commands and outputs an alarm once the
count number reaches the count set with the related parameter.
This function provides a guide on when to perform brake maintenance such as system inspections and parts
replacement.
Description of Operation
This function counts the number of Run commands or brake release commands. Select the count type with S2-08
[Number of Driving count selec]. The count type selected with S2-08 is applicable to all three motors (motor 1,
motor 2, and motor 3).
Note:
If a particular motor does not have a brake sequence enabled, the Run command will be counted even when S2-08 = 1 [Brake Release
Command count].
Applicable motor
Count type
Cumulative Startup Count Value
Monitor
*1
Alarm Output Operation Setting
*2 *3
Alarm Output Detection Level
Setting
Fault/Minor Fault Code
*2 *3
Number of Starts Alarm Output
Startup Count Reset Setting
*4
*1
The maximum count value is 10,000,000. This function stops counting startups when the maximum value is reached.
*2
The following operations are selected with S2-12 [MentenanceTimer Output Selection].
• Enable and disable alarm output
• Continue or stop drive operation when an alarm is triggered
*3
Detection as a fault or minor fault is only applicable to the motor selected by the motor switch function. A fault or minor fault is
output when conditions are satisfied for the selected motor.
When replacing a drive, set S2-09 to S2-11 with the startup count information in the old drive.
*4
Figure 3.11 Example Maintenance Monitor Operation (Run Command count: S2-08 = 0)
S2-09 - Motor1 Number of Driving start
S2-13 - Motor1 Number of Driving Limit
YASKAWA ELECTRIC SIEP C710617 19A YASKAWA AC Drive CR700 Technical Manual
Motor 1
Select the command to be counted with S2-08.
0: Run Command count
1: Brake Release Command count
• U4-54 [Num of Driv 1 (High)]
• U4-56 [Num of Driv 2 (High)]
• U4-53 [Num of Driv 1 (Low)]
• U4-55 [Num of Driv 2 (Low)]
The operation selected with S2-12 [MentenanceTimer Output Selection] applies to all motors.
0: Disable
1: Alarm
2: Fault
S2-13 [Motor1 Number of
S2-14 [Motor2 Number of
Driving Limit]
Driving Limit]
CnT1 [Number of Driving Over] CnT2 [Number of Driving Over] CnT3 [Number of Driving Over]
When the startup count exceeds the detection level, the output terminal selected with H2-xx = 52
[Warning Signal] turns on.
S2-09 [Motor1 Number of
S2-10 [Motor2 Number of
Driving start]
Driving start]
3 Startup Procedure and Test Run
Motor 2
• U4-58 [Num of Driv 3 (High)]
• U4-57 [Num of Driv 3 (Low)]
S2-15 [Motor3 Number of
Driving Limit]
S2-11 [Motor3 Number of
Driving start]
U4-54 - Num of Driv 1 (High)
U4-53 - Num of Driv 1 (Low)
Motor 3
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