6.1 Alarms Related to the Dynamic Brake Hardware Option Specifications
6.1.2 Troubleshooting Alarms
6
Maintenance
6-3
6.1.2
Troubleshooting Alarms
This section provides information on the causes of and corrections for alarms related to the
dynamic brake hardware option specifications. Contact your Yaskawa representative if you
cannot solve a problem with the corrections given in the table.
Alarm Number:
Alarm Name
Possible Cause
Confirmation
Correction
Refer-
ence
A.042:
Parameter Com-
bination Error
The speed of program
jogging went below the
setting range when the
electronic gear ratio
(Pn20E/Pn210) or the
Servomotor was
changed.
Check to see if the
detection conditions
*1
are satisfied.
Decrease the setting of
the electronic gear ratio
(Pn20E/Pn210).
–
The speed of program
jogging went below the
setting range when
Pn533 or Pn585 (Pro-
gram Jogging Speed)
was changed.
Check to see if the
detection conditions
*1
are satisfied.
Increase the setting of
Pn533 or Pn585.
–
The movement speed of
advanced autotuning
went below the setting
range when the electronic
gear ratio (Pn20E/ Pn210)
or the Servomotor was
changed.
Check to see if the
detection conditions
*2
are satisfied.
Decrease the setting of
the electronic gear ratio
(Pn20E/Pn210).
–
Pn001 (Basic Function
Select Switch 1), Pn601
(Dynamic Brake Resistor
Allowable Energy Con-
sumption), and Pn604
(Dynamic Brake Resis-
tance) are not set cor-
rectly.
•
Pn601 (Dynamic
Brake Resistor Allow-
able Energy Con-
sumption) or Pn604
(Dynamic Brake
Resistance) is set to
0, even though using
the dynamic brake to
stop is specified in
the parameters
(Pn001 = n.
0 or
Pn001 = n.
1).
•
Pn601 (Dynamic
Brake Resistor Allow-
able Energy Con-
sumption) or Pn604
(Dynamic Brake
Resistance) is not set
to 0, even though
coasting the motor to
stop without using
the dynamic brake is
specified in the
parameters (Pn001 =
n.
2).
Set Pn001 (Basic Func-
tion Select Switch 1),
Pn601 (Dynamic Brake
Resistor Allowable Energy
Consumption), and Pn604
(Dynamic Brake Resis-
tance) to the correct val-
ues.
Continued on next page.