GE MM300 Manual page 100

Motor management system/low voltage motor protection and control
Hide thumbs Also See for MM300:
Table of Contents

Advertisement

PROFIBUS DPV1
4–22
Category
Object
Slot
Start Blocks
0
0
0
0
0
0
Learned
0
0
0
0
0
0
0
0
Counters
0
0
0
0
0
0
0
0
Current
0
0
Metering
0
0
0
0
0
0
0
0
0
0
0
0
Voltage
0
0
Metering
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Power
0
0
Metering
0
0
0
0
0
0
0
0
0
0
Sensor
0
0
Metering
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Index Length
Data Item
(in
Bytes)
10
2
Starts/Hour Block
12
2
Time Between Starts Lockout
14
2
Restart Block Lockout
16
2
Average Motor Load Learned
18
2
Learned Acceleration Time
20
4
Learned Starting Current
24
2
Learned Starting Capacity
26
2
Number of Motor Starts
28
2
Number of UV Restarts
30
4
Motor Running Hours
34
2
Motor Stopped Hours
36
4
Ia
40
4
Ib
44
4
Ic
48
4
Iavg
52
4
Igrd
56
2
Motor Load
58
2
Current Unbalance (I Unb)
60
2
Vab
62
2
Vbc
64
2
Vca
66
2
Va1 Angle
68
2
Vb1 Angle
70
2
Vc1 Angle
72
2
Van
74
2
Vbn
76
2
Vcn
78
2
VAux
80
2
Frequency
82
2
Power Factor
84
4
Real Power
88
4
Reactive Power
92
2
Apparent Power
94
4
MWh Consumption
98
4
Mvarh Consumption
102
2
Hottest Stator RTD
104
2
Hottest Stator RTD Temp
106
2
RTD 1 Temp
108
2
RTD 2 Temp
110
2
RTD 3 Temp
112
2
RTD 4 Temp
114
2
RTD 5 Temp
116
2
RTD 6 Temp
MM300 MOTOR MANAGEMENT SYSTEM – COMMUNICATIONS GUIDE
CHAPTER 4: FIELDBUS INTERFACE
Format
F1
F1B
F1
F3
F2
F10
F1
F1
F1
F9
F1
F10
F10
F10
F10
F10
F1
F1
F1
F1
F1
F1
F1
F1
F1
F1
F1
F1
F3
F21
F13
F13
F2
F17
F17
F1
F4
F4
F4
F4
F4
F4
F4

Hide quick links:

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the MM300 and is the answer not in the manual?

Questions and answers

Kristiyan
March 31, 2025

we have a problem with device MM300. it says that the device is invalid through the software and does not read the device. the communication is through RS 485. is it possible to give us an advice or send us some reccomendations or instructions?

1 comments:
Mr. Anderson
March 31, 2025

For a GE MM300 device that is not recognized by software and communicates via RS485, follow these troubleshooting steps:

1. Ensure correct RS485 wiring:
- Use two-wire RS485 in a daisy chain configuration.
- Install a 120 Ohm resistor in series with a 1 nF ceramic capacitor at each end of the link.
- Use shielded wire and ground the shield at only one location.

2. Check device addressing and termination:
- Confirm proper device address and ensure no address conflicts.
- Verify that termination networks are correctly installed at both ends.

3. Confirm half-duplex communication:
- Ensure that the system supports half-duplex communication and not sending and receiving data simultaneously.

4. If using USB for setup (e.g., USB-to-RS485 converter) and the device is not recognized:
- Repeat the connection procedure 2–3 times.
- If still not recognized, uninstall the USB driver from Device Manager under modems.
- Disconnect the USB cable, wait at least 10 seconds, then reconnect.
- When prompted by the Hardware Wizard, select "No, not this time," then "Install the software automatically," and press "Continue Anyway."
- Finish the installation and check if the USB device appears in the setup software.

These steps help ensure proper hardware connection and correct software recognition of the MM300 device.

This answer is automatically generated

Table of Contents

Save PDF