Dcma Outputs - GE C30 Instruction Manual

TRANSDUCER INPUTS/OUTPUTS
Actions based on RTD overtemperature, such as trips or alarms, are done in conjunction with the FlexElements feature. In
FlexElements, the operate level is scaled to a base of 100°C. For example, a trip level of 150°C is achieved by setting the
operate level at 1.5 pu. FlexElement operands are available to FlexLogic for further interlocking or to operate an output
contact directly.
See the following table for reference temperature values for each RTD type.
Table 5-23: RTD temperature vs. resistance
Temperature
°C °F
–50 –58
–40 –40
–30 –22
–20 –4
–10 14
0 32
10 50
20 68
30 86
40 104
50 122
60 140
70 158
5
80 176
90 194
100 212
110 230
120 248
130 266
140 284
150 302
160 320
170 338
180 356
190 374
200 392
210 410
220 428
230 446
240 464
250 482

5.9.3 DCmA outputs

SETTINGS  TRANSDUCER I/O  DCMA OUTPUTS  DCMA OUTPUT F1(W8)
 DCMA OUTPUT F1

5-198
Resistance (in ohms)
100 Ω Pt 120 Ω Ni 100 Ω Ni
(DIN 43760)
80.31 86.17 71.81
84.27 92.76 77.30
88.22 99.41 82.84
92.16 106.15 88.45
96.09 113.00 94.17
100.00 120.00 100.00
103.90 127.17 105.97
107.79 134.52 112.10
111.67 142.06 118.38
115.54 149.79 124.82
119.39 157.74 131.45
123.24 165.90 138.25
127.07 174.25 145.20
130.89 182.84 152.37
134.70 191.64 159.70
138.50 200.64 167.20
142.29 209.85 174.87
146.06 219.29 182.75
149.82 228.96 190.80
153.58 238.85 199.04
157.32 248.95 207.45
161.04 259.30 216.08
164.76 269.91 224.92
168.47 280.77 233.97
172.46 291.96 243.30
175.84 303.46 252.88
179.51 315.31 262.76
183.17 327.54 272.94
186.82 340.14 283.45
190.45 353.14 294.28
194.08 366.53 305.44
DCMA OUTPUT F1

SOURCE: Off
DCMA OUTPUT F1

RANGE: –1 to 1 mA
10 Ω Cu
7.10
7.49
7.88
8.26
8.65
9.04
9.42
9.81
10.19
10.58
10.97
11.35
11.74
12.12
12.51
12.90
13.28
13.67
14.06
14.44
14.83
15.22
15.61
16.00
16.39
16.78
17.17
17.56
17.95
18.34
18.73
Range: Off, any analog actual value parameter
Range: –1 to 1 mA, 0 to 1 mA, 4 to 20 mA
C30 CONTROLLER SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS