Oriental motor EZ limo ESMC-A, Руководство по эксплуатации

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4 Types and functions of operations
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31
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4.11 Stopping the motor excitation
●
C
●
D
While the motor is not excited, the moving part can be moved manually.
The motor excitation can be stopped by turning ON the FREE input or C.OFF input.
Signal name Motor Electromagnetic brake
FREE input
●
C
●
D Not excited Released
C.OFF input
●
D Not excited Actuated
4.12 Reading current position data
●
C
●
D
This function can be used to read the current position and other data recognized by the controller. It takes 0.5
to 1 second before data is read.
Data format (Total 56 bits)
Current position data: 32 bits + Status: 8 bit + Alarm code: 8 bit + Checksum: 8 bit
How to read data
Example: When the current position is 123.45 mm (4.860 in.), and an EMG input detection alarm (Err68h) is
present
Upper bit ← → Lower bit
0000 0000 0000 0000 0011 0000 0011 1001 0000 0000 0110 1000 1101 0001
Upper bit
(OUT1)
Lower bit
(OUT0)
Current
position =
12345 (decimal)
Status = 000 0 0 0 0 0
⑥ ⑤ ④ ③ ② ①
①
bit 0: Overflow
②
bit 1: Overspeed
③ bit 2: Absolute data lost
④ bit 3: Low-voltage warning
⑤
bit 4: No battery
⑥
bit 5 to 7: Not defined (always 0)
Alarm = 68 (hexadecimal)
Checksum
About checksum
The checksum provides information based on which the controller checks if the correct data has been read.
The total 48 bits including the current position, status and alarm are divided by eight bits, and the six 8-bit
sets are then added up. If the lower eight bits of this sum are the same as the checksum value, the correct data
has been read.
Example:
0000 0000 + 0000 0000 + 0011 0000 + 0011 1001 + 0000 0000 + 0110 1000
= 0000 0000
1101 0001
↑
The lower eight bits provide the checksum.
4.13 Softlimit
●
C
This function is available when the “Softlimit” parameter explained in “Common parameters” on p.53 is set
to “on.”
When the command position exceeds the Lim+ (upper softlimit) position or drops below the Lim– (lower
softlimit) position during any operation other than return-to-home operation, the motor decelerates before the
specified Lim+/Lim– position and stops at the Lim+/Lim– position.
A softlimit error (Err67) generates.