AH500 Module Manual External wiring (1) AH04PT-5A *1. The cables or the shielded twisted pair cables for Ni100/Ni1000/Pt100/Pt1000 temperature sensors are used, and should be kept separate from other power cables and cables which generate noise. Please use a three-wire temperature sensor. If users want to use a two-wire temperature sensor, O n + and I n + have to be short-circuited, and O n - and I n - have to be short-circuited. ( n is in the range of 0 to 3.) *2. If users want to measure the resistance in the range of 0 Ω to 300 Ω, they can use a two-wire or three-wire sensor instead of a four-wire sensor. *3. User need to select an appropriate sensor.
If a Ni100 temperature sensor, a Pt100 sensor, and a resistance sensor are used, the internal excitation current is 1.53 mA. If a Ni1000 temperature sensor, and a Pt1000 temperature sensor are used, the internal excitation current is 204.8 μA.
5.1.10 LED Indicators 5-16 0~30 0Ω Ni1 00/N i1000 Pt1 00/Pt1000 Shielded cable *1 C H 0 O I0 I0 O F 2-Wir e 0~ 300Ω N i100/N i10 00 Shielded cable *1 C H 1 Pt100 /Pt1 000 O I1 I1 O F 3-Wire Ni 100/N i100 0 Pt100/Pt100 0*2 Shielded cable *1 C H 3 1.53mA (Ni100P,t100, Resi stor)/ 0 + 204.8uA (Pt1000)*3 + AD C - IN A 0 - AG G 1 + + - 1- G AG 3 + + - 3- G AG O 3 + I3 + I3 - O 3- O I0 0 + + I0 O - 0 - F G O 1 + I1 I1 + - O 1- F G Number Name Description Operating status of the module RUN LED 1 ON: The module is running. indicator OFF: The module stops running. Error status of the module ERROR LED ON: A serious error occurs in the module. 2 indicator OFF: The module is normal. Blink:
A slight error occurs in the module.