Inovance AC800 Series - Wiring of UPS and Status I;Os

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5 Wiring
AC800 Series Intelligent Machine Controller Hardware User Guide
Item Input Signal (pins 1/3/5) Output Signal (pins 2/4)
Isolation mode Optocoupler isolation Optocoupler isolation
Short circuit-proof output N/A Yes
3 RS-485 speci󶍾cations:
RS485 communication supports the Modbus RTU protocol and free protocol.
No. Item Speci󶍾cations
1 Station No. 1 to 247
2 Communication rate (bps) 4.8K,9.6K,19.2K,38.4K,57.6K,115.2K
3 Data length 8 bits
4 Parity bit None, odd, even
5 Stop bit 1,2
6 Max. number of stations 32
4 RS-232 speci󶍾cations:
The communication speci󶍾cations supported by the RS232 bus are as follows:
No. Item Speci󶍾cations
1 Number of slaves 1
2 Communication rate (bps)* 300,600,1.2K,2.4K,4.8K,9.6K,19.2K,38.4K,57.6K,115.2K
NOTE
When you use an RS-232 to RS-485 converter, it is recommended to use an external power
supply to power the converter. If external power supply is unavailable, the communication
baud rate should not exceed 9.6 Kbps.
5.3.2 Wiring of UPS and status I/Os
To enable power failure retention, a 24 VDC BUFFER 5AS UPS is required. The recommended wiring
method for UPS and other I/O control signals is shown in the 󶍾gure below:
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Figure 5 -7 UPS connection
Note: The 0V signal has been internally connected to the power supply terminal and no additional wiring
is required.
UPS external power supply: The UPS needs a 24 VDC power supply. It is recommended to use a switched
mode power supply with a load capacity above 10 A.