8. MAINTENANCE
8 - 16
Alarm Status
Segment LED
Display
Alarm Code
ALM8,4,2,1
Abbreviation Alarm Name
Alarm
Clear
Contents
0101 RGOH Overheat of
built-in
regenerative
resistor
Possible Overheating detected in internal
regenerative resistor module.
Alarm code 0,1 indicates: when Func2/ bit7,6 =”0,0”, “0”= output open and “1”= output short.
Operating state when alarm occurred
POSSIBLE CAUSES
OPERATING STATE
1 2 3 4
When control power supply is turned on
△
○ ○
During operation
△ ○ ○ ○
Corrective Measures
CAUSE CORRECTIVE MEASURES
1 Faulty amplifier internal circuit Replace servo amplifier
2 Regenerative power is too high • Review operating conditions.
• Use an external regenerative resistor module
3 Faulty parameter setting (page9 of mode8)
regenerative resistor type (RGKD)
Check parameter setting:
• In case regenerative resistor is not connected;
regenerative resistor type (RGKD) = “None/Ext.R”
• In case of using external regenerative resistor;
regenerative resistor type (RGKD) = “None/Ext.R”
• In case of using built-in regenerative resistor;
regenerative resistor type (RGKD) = “Built-in R”
4 Faulty wiring of built-in regenerative resistor. Wire according to Chapter 9 Regenerative Resistor.
[Amplifier capacity of 15A/ 30A]
Connect built-in regenerative resistor wire to P and
Y terminals of CND connector.
[Amplifier capacity of 50A]
Short circuit between P-X terminals of CND
connector.
Replace Servo Amplifier if malfunction persists.
When using regenerative resistor built in Servo Amplifier, make sure to set page9
Regenerative Resistor type (RGKD) to “built-in regenerative resistor (Built-in R). With
this setting, validity of overheat protection detection process of built-in regenerative
resistor is judged. In case “no regenerative resistor connection or external regenerative
resistor (None/ Ext.R) is selected, overheat detection of built-in regenerative resistor will
not function. Therefore, built-in regenerative resistor may be burn or smoke occurs.
To Next Page
Loading...
