Optidrive Compact-2 Engineering Guide Issue 07.docx
Modbus RTU Registers 25 - 28: Drive Serial Number
The drive serial number may be read using these four registers. The serial number has 11 digits, stored as follows:-
e.g.
Start Mode, Auto Restart & Fire Mode Configuration (P-30)
This parameter contains 3 values, stored as follows:-
Input Type
0: Constant
1: Momentary Start
Input Sense
0: Normally Closed (Open
Fire Mode)
1: Normally Open (Closed
Fire Mode)
Start Mode / Auto Restart as:-
0: Edge-r
1: Auto-0
2: Auto-1
3: Auto-2
4: Auto-3
5: Auto-4
6: Auto-5
DC Injection Configuration (P-32)
The parameter value is stored as a combined 16 bit word which is constructed as follows:-
DC Injection Mode
0: DC Injection on Start
1: DC Injection on Stop
2: DC Injection on Start & Stop
DC Injection Duration: 1dp, e.g. 0 – 250 = 0.0 – 25.0s
Communications Configuration (P-36)
This Register entry contains multiple data entries, as follows:-
Data values can be interpreted as follows:-
30ms Watchdog, Trip on Comms Loss
300ms Watchdog, Trip on Comms Loss
1000ms Watchdog, Trip on Comms Loss
3000ms Watchdog, Trip on Comms Loss
30ms Watchdog, Ramp to Stop on Comms Loss
300ms Watchdog, Ramp to Stop on Comms Loss
1000ms Watchdog, Ramp to Stop on Comms Loss
3000ms Watchdog, Ramp to Stop on Comms Loss
Display Scaling (P-40)
The parameter value is stored as a combined 16 bit word which is constructed as follows:-
Display Scaling Source
0: Motor Speed
1: Motor Current
2: Analog Input 2 Signal
3: PI Feedback
Display Scaling Factor: 3dp, e.g. 0 – 16000 = 0.000 – 16.000