Mitsubishi Electric FR-A7ND E kit Instruction Manual page 44

Operation at error removal
Alarm Definition
Communication line
Communication
option itself
CAUTION
• A communication line error [E.OP1 (alarm data: HA1)] is an error that occurs on the communication line,
and an error of the communication option unit itself [E. 1 (alarm data: HF1)] is a communication circuit error
in the option.
• The alarm output indicates alarm output signal (ALM signal) or alarm bit output.
• When the setting was made to provide an alarm output, the error definition is stored into the alarm history.
(The error definition is written to the alarm history when an alarm output is provided.)
When no alarm output is provided, the error definition overwrites the alarm indication of the alarm history
temporarily, but is not stored.
After the error is removed, the alarm indication is reset and returns to the ordinary monitor, and the alarm
history returns to the preceding alarm indication.
• When the Pr. 502 setting is "1" or "2", the deceleration time is the ordinary deceleration time setting (e.g. Pr.
8, Pr. 44, Pr. 45).
• The acceleration time at a restart is the ordinary acceleration time setting (e.g. Pr. 7, Pr. 44).
• When the Pr. 502 setting is "2", the operation/speed command at a restart is the one given before the error
occurrence.
• When a communication line error occurs at the Pr. 502 setting of "2", removing the error during deceleration
causes acceleration to restart at that point. (Acceleration is not restarted if the error is that of the option unit
itself.)
Pr. 502 Setting Operation
0
Kept stopped
1
2 Restart
3 Continued
0, 3
Kept stopped
1, 2
INVERTER SETTING
Indication Alarm Output
E.OP1 kept lit Kept provided
Normal indication Not provided
E. 1 kept lit Kept provided
4
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