GE MM300 Manual page 112
Motor management system/low voltage motor protection and control
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Also See for MM300:
- Instruction manual (198 pages) ,
- Quick start manual (77 pages) ,
- Installation recommendations (21 pages)
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PROFIBUS DPV1
4–34
Byte
164
30
165
30
166
30
167
30
168
31
169
31
170
31
171
31
172
31
173
31
174
31
175
31
176
32
177
32
178
32
179
32
180
32
181
32
182
32
183
32
184
33
185
33
186
33
187
33
188
33
189
33
190
33
191
33
192
34
193
34
194
34
195
34
196
34
197
34
198
34
199
34
200
35
201
35
202
35
203
35
204
35
205
35
206
35
207
35
208
36
Bit
GSE Bit #
4
188
"Process ILock J Alarm"
5
189
"Drive Failed to Start"
6
190
"Inverter Failed"
7
191
"Drive Stop Failed"
0
192
"RTD 6 Alarm"
1
193
Reserved
2
194
"RTD Open/Short Alarm"
3
195
"Process ILock A Alarm"
4
196
"Process ILock B Alarm"
5
197
"Process ILock C Alarm"
6
198
"Process ILock D Alarm"
7
199
"Process ILock E Alarm"
0
200
Reserved
1
201
"UnderCurrent Alarm"
2
202
"Unbalance Alarm"
3
203
"RTD 1 Alarm"
4
204
"RTD 2 Alarm"
5
205
"RTD 3 Alarm"
6
206
"RTD 4 Alarm"
7
207
"RTD 5 Alarm"
0
208
"Any Alarm"
1
209
"Thermal Level Alarm"
2
210
"Ground Fault Alarm"
3
211
"Acceleration Alarm"
4
212
"Phase Reversal Alarm"
5
213
"UnderPower Alarm"
6
214
"UnderVoltage Alarm"
7
215
"OverVoltage Alarm"
0
216
Reserved
1
217
Reserved
2
218
Reserved
3
219
Reserved
4
220
Reserved
5
221
Reserved
6
222
Reserved
7
223
Reserved
0
224
Reserved
1
225
Reserved
2
226
Reserved
3
227
Reserved
4
228
Reserved
5
229
Reserved
6
230
Reserved
7
231
Reserved
0
232
Reserved
MM300 MOTOR MANAGEMENT SYSTEM – COMMUNICATIONS GUIDE
CHAPTER 4: FIELDBUS INTERFACE
Ext.
Diag
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27
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27
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28
28
28
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29
29
30
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Need help?
Do you have a question about the MM300 and is the answer not in the manual?
Questions and answers
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?
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