User manual

15 Alarms and warnings
−127−
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Alarm reset
Perform one of the reset operations specified below.
Before resetting an alarm, always remove the cause of the alarm and ensure safety.
• Turn the ALM-RST input to ON and then OFF. (The alarm will be reset at the OFF edge of the input.)
• Perform an alarm reset using the OPX-2A or MEXE02.
• Cycle the power.
Note
• Some alarms cannot be reset with the ALM-RST input or alarm reset functions provided
by the OPX-2A and MEXE02. Check which alarms fall under this category in the tables
provided on the following pages. To reset these alarms, the power must be cycled. If a
24 VDC power supply is connected, also cycle the 24 VDC power supply.
• The absolute position loss alarm cannot be reset with the ALM-RST input alone. Refer
to p.63 for details on the method to reset this alarm.
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Characteristics of the overload alarm
How long it takes to detect an overload alarm varies depending on the torque.
Reference overload detection time
Continuous
output torque
Overload detection time
100% Continuous
125% Approx. 10 sec
150% Approx. 4 sec
250% Approx. 1 sec
300% Approx. 0.5 sec
Overload detection time (reference)
0
1
2
3
4
5
6
7
8
9
10
11
100 150 200 250 300
Load factor (%)
∗
Overload detection time (sec)
∗ The load factor is 100% when the rated torque is output.