WIRING GUIDELINES
Terminal Layout
6 | + | 11 | A/A' |
| 1 |
C | NO | ||||
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| OUT 2 |
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| OUT 1 |
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A) Measuring Inputs
NOTE: Any external components (like Zener diodes, etc.) connected between sensor and input terminals may cause errors in measurement due to excessive and/or not balanced line resistance or possible leakage cur- rents.
TC Input
7 | NO | 12 B/B' | C | 2 | |
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| _ | RS485 |
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8 |
| 13 | C | NC | 3 |
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| RTD |
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| 4 |
9 |
| 14 |
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10
9
+
_
Shield
_ | LINEAR |
| LINEPWR 100/240Vac Vac/dc24 |
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TC | DIG 1 |
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10 | 15 | 5 |
+
10
9
+
_
Shield
NOTE: When a relay output is used to drive an inductive load, connect an external snubber network (RC) across the terminals:
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| R | C |
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in accordance with the following table: | |||||
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Load | C |
| R | P | Resistor and |
Current | (∝F) |
| (Ω ) | (W) | Capacitor Voltage |
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< 40 mA | 0.047 |
| 100 | 1/2 | 260 Vac |
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< 150 mA | 0.1 |
| 22 | 2 | 260 Vac |
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< 0.5 Amp | 0.33 |
| 47 | 2 | 260 Vac |
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7
NOTE:
1)Do not run input wires with power cables.
2)For TC wiring use proper compensating cable, preferably shielded (see Thermocouple Compen- sating Cable Color Codes).
3)Shielded cable should be grounded at one end only.
7 | 9/17/02, 2:39 PM |
