P7-01 communication parameter:
00: 300
01: 600
02: 1200
03: 2400
04: 4800
05: 9600
06: 19200
07: 38400
08: 57600
09: 115200
0B: 256000
0C: 288000
0D: 384000
0E: 512000
0F: 576000
10: 768000
11: 1M
12: 2M
13: 3M
14: 4M
15: 5M
16: 6M
0: no parity, 1: odd parity, 2: even parity
Note: data bit cannot be set, it is 8-bit.
P7-02 is RS485 communication protocol:
RS485 communication
protocol
2: Xnet fieldbus protocol
(1) support standard Modbus-RTU protocol, used as Modbus slave device.
(2) RS232 and RS485 port can be used at the same time.
5-10-3. The use and replacement of battery
When the servo power supply is OFF, the battery can keep the absolute encoder position information.
When the servo power is on again, the upper device can read the motor encoder present position
through Modbus communication.
Battery specification: No.5 battery, 3.6V (ER14505 AA 3.6V).
When the battery voltage is below 2.75V, servo drive will show E-222 alarm (absolute encoder battery
under voltage). The alarm only outputs when the servo is ON.
Note:
(1) Please change the battery every two years.
(2) If the battery is under voltage, when the servo power supply is OFF and ON again, the data in
the absolute encoder will miss. Please protect the program and avoid equipment error action.
(3) Please check the firmware version U2-22/U2-23, for the version after 20160304, P0-79=1
means battery under voltage alarm is invalid, P0-79=0 means battery under voltage alarm is
valid.
The steps to replace the battery:
Please replace the battery when the servo power supply is ON, otherwise the encoder data will be
error. After replacement, please re-power on the servo drive to clear the E-222 alarm.
5-11．Other output signals
5-11-1. /ALM and /ALM-RST
Servo alarm output /ALM
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