Modbus RS485 Stepper Drive User Manual
Appendix A Parameters List
1. Modbus RTU Parameters
The STEPPERONLINE RS485 parameter data type is 32-bit data, and a parameter contains two registers, high 16
bits and low 16 bits, but in practice most parameters only need to use the low 16 bits. When reading and writing
multiple parameters in succession, the high 16 bits of the parameter need to be used as the start.
Forced enable by software
Software forced enable has a higher priority
than IO enable, and when this value is 0, the
enable status of the drive only depends on the
IO signal. When this value is 1, the motor is
enabled regardless of the IO signal status.
To configure the time for internal command
filtering
Default is normal-open(N.O) type, it can be set
to normal-closed(N.C) type by setting the
corresponding port +0x80
DI1 is enable(default), N.C type input.
0: invalid; 7: alarm clearing;
8: enable (also can be set by 0x00F);
0x20: Trigger command;
0x21: Trigger homing;
0x22: EMG (quick stop);
0x23: JOG+;
0x24: JOG-;
0x25: POT (positive limit);
0x26: NOT (negative limit);
0x27: ORG (home switch);
0x28: ADD0 (path address 0);
0x29: ADD1 (path address 1);
0x2A: ADD2 (path address 2);
0x2B: ADD3 (path address 3);
0x2C: JOG velocity 2
Default is normal-open(N.O) type, it can be set
to normal-closed(N.C) type by setting the
corresponding port +0x80
0: invalid;
0x20: command completed;
0x21: path completed;
0x22: homing completed;
0x23: in-position completed;
0x24: brake output;
0x25: alarm output;
Threshold value of brake
locking velocity
Alarm detection selection
Bit setting:
=1: Yes; =0: No
bit0: over-current ( Cannot be changed)
bit1: over-voltage
bit3: ADC sampling failure
bit4: Locked shaft alarm
bit5: EEPROM alarm
bit6: Auto-tuning alarm
Approximately equal to motor phase current
value multiplied by 1.4
522: 0-22
556: 0-56
870: 0-70
882: 0-82