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
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