Delta C2000 Series User Manual page 411

Content
5. Exception response:
The AC motor drive is expected to return a normal response after receiving command messages
from the master device. The following depicts the conditions when no normal response is replied to
the master device.
The AC motor drive does not receive the messages due to a communication error; thus, the AC
motor drive has no response. The master device will eventually process a timeout condition.
The AC motor drive receives the messages without a communication error, but cannot handle
them. An exception response will be returned to the master device and an error message "CExx"
will be displayed on the keypad of AC motor drive. The xx of "CExx" is a decimal code equal to the
exception code that is described below.
In the exception response, the most significant bit of the original command code is set to 1, and
an exception code which explains the condition that caused the exception is returned.
Example:
ASCII mode:
STX
Address
Function
Exception code
LRC CHK
END
Chapter 12 Description of Parameter Settings C2000 Series
Register
Number of motor tunrns when drive operates (keeping when
2220H
drive stops, and reset to zero when operation)
Opeartion position of motor (keeping when drive stops, and
2221H
reset to zero when operation)
2222H Fan speed of the drive XXX%
2223H Control mode of the drive 0: speed mode 1: torque mode
2224H Carrier frequency of the drive XXKHZ
2225H Reserve
Drive status
bit 1~0 00b: No direction
01b: Forward
10b: Reverse
bit 3~2 01b: Driver ready
2226H
10b: Error
bit 4 0b: Motor drive did not output
1b: Motor drive did output
bit 5 0b: No alarm
1b: Have Alarm
Drive's estimated output torque(positive or negative direction)
2227H
XXXX Nt-m
2228H Torque command XXX.X%
2229H KWH display XXXX.X
222AH PG2 pulse input in Low Word
222BH PG2 pulse input in High Word
222CH Motor actual position in Low Word
222DH Motor actual position in High Word
222EH PID reference XXX.XX%
222FH PID offset XXX.XX%
2230H PID output frequency XXX.XXHz
':'
'0'
'1'
'8'
'6'
'0'
'2'
'7'
'7'
CR
LF
12-09-11
Function
RTU mode:
Address
Function
Exception code
CRC CHK Low
CRC CHK High
01H
86H
02H
C3H
A1H