CHAPTER 5: SETTINGS
TRANSDUCER INPUTS/OUTPUTS
M60 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
5-333
5
Table 5-44: RTD temperature vs resistance
RTD INPUT H1 APPLICATION
— This setting allows each individual RTD to be assigned to a group application. This is useful for
applications that require group measurement for voting. A value of “None” specifies that the RTD operates individually and
not part of any RTD group. All RTDs programmed to “Stator” are used for RTD biasing of the M60 thermal model. Common
groups are provided for rotating machines applications such as ambient, bearing, group 1, or group 2. If the
RTD INPUT H1
TRIP VOTING
setting value is “Group”, then it is allowed to issue a trip if N – 1 RTDs from the same group also pick up, where
N is the number of enabled RTDs from the group.
RTD INPUT H1 ALARM TEMPERATURE
— Specifies the temperature pickup level for the alarm stage.
RTD INPUT H1 ALARM PKP DELAY
— Specifies time delay for the alarm stage until the output can be asserted.
RTD INPUT H1 TRIP TEMPERATURE
— Specifies the temperature pickup level for the trip stage.
RTD INPUT H1 TRIP PKP DELAY
— Specifies time delay for the trip stage until the output can be asserted.
RTD INPUT H1 TRIP RST DELAY
— Specifies the reset delay to seal-in the trip signal.
Temperature
Resistance (in ohms)
°C
°F
100 ohm Pt
(DIN 43760)
120 ohm Ni
100 ohm Ni
10 ohm Cu
–50
–58
80.31
86.17
71.81
7.10
–40
–40
84.27
92.76
77.30
7.49
–30
–22
88.22
99.41
82.84
7.88
–20
–4
92.16
106.15
88.45
8.26
–10
14
96.09
113.00
94.17
8.65
0
32
100.00
120.00
100.00
9.04
10
50
103.90
127.17
105.97
9.42
20
68
107.79
134.52
112.10
9.81
30
86
111.67
142.06
118.38
10.19
40
104
115.54
149.79
124.82
10.58
50
122
119.39
157.74
131.45
10.97
60
140
123.24
165.90
138.25
11.35
70
158
127.07
174.25
145.20
11.74
80
176
130.89
182.84
152.37
12.12
90
194
134.70
191.64
159.70
12.51
100
212
138.50
200.64
167.20
12.90
110
230
142.29
209.85
174.87
13.28
120
248
146.06
219.29
182.75
13.67
130
266
149.82
228.96
190.80
14.06
140
284
153.58
238.85
199.04
14.44
150
302
157.32
248.95
207.45
14.83
160
320
161.04
259.30
216.08
15.22
170
338
164.76
269.91
224.92
15.61
180
356
168.47
280.77
233.97
16.00
190
374
172.46
291.96
243.30
16.39
200
392
175.84
303.46
252.88
16.78
210
410
179.51
315.31
262.76
17.17
220
428
183.17
327.54
272.94
17.56
230
446
186.82
340.14
283.45
17.95
240
464
190.45
353.14
294.28
18.34
250
482
194.08
366.53
305.44
18.73
Summary of Contents for M60
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