Inovance MD880-01S-0751-4 - Temperature Measurement with AI and AO

4 HCU Control Module
- 92 -
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Figure 4-9 HESD wiring example
NOTE
◆
Functional modules can be directly installed in SLOT1, SLOT2 and SLOT3.
The addresses are: A1, B1, C1:
◆
The SLOT1 and SLOT2 slots can be used with the HOFM-30 module to
achieve three SLOT slot expansions respectively. The addresses are A1, A2,
A3 and B1, B2, and B3 respectively;
◆
SLOT3 does not support slot expansion.
◆
In this case, the HESD module is not allowed to install another HOFM
optical 󶍾ber expansion module.
4.9.2 Temperature Measurement with AI and AO
AI and AO, which can be used together to detect the PT100 temperature sensor signal,
are generally used for motor temperature detection, with either single PT100 or one to
three PT100's in series. AO selects constant current output and AI selects voltage signal
input.
Do not directly ground both ends of the cable shield. Directly ground one end and
suspend the other end, or directly ground one end and ground the other end after
passing through a string capacitor.