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GE MM300 Instruction Manual Page 162

Motor management system low voltage motor protection and control.
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PROTECTION ELEMENTS
5–52
Temperature
°C
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
All RTDs programmed with an alarm or a trip are monitored for sensor failure. When the
measured temperature is greater than 250°C, the RTD is declared failed and a common
RTD open circuit alarm is issued. When the measured temperature is less than -50°C, a
common RTD short circuit/low temperature alarm is issued.
The following setpoints are available for RTD protection.
RTD Open Circuit Alarm
Range: Enabled, Disabled
Default: Disabled
Enable to generate an alarm if RTD is open circuit.
RTD Open/Short Circuit Alarm
Range: Enabled, Disabled
Default: Disabled
Enable to generate an alarm if RTD is shorted/opened.
RTD #1 Application to RTD #3 Application
Range: None, Stator, Bearing, Ambient, Other
Default: None
These setpoints select the application type for RTDs #1 through 6, respectively.
RTD #1 Alarm Temp to RTD #6 Alarm Temp
Range: 1 to 250°C in steps of 1 or OFF
Default: OFF
These setpoints specify the alarm temperature for RTDs #1 through 6, respectively.
°F
68
86
104
122
140
158
176
194
212
230
248
266
284
302
320
338
356
374
392
410
428
446
464
482
MM300 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETPOINTS
Resistance (in ohms)
100 Pt
107.79
111.67
115.54
119.39
123.24
127.07
130.89
134.70
138.50
142.29
146.06
149.82
153.58
157.32
161.04
164.76
168.47
172.46
175.84
179.51
183.17
186.82
190.45
194.08

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