Hyundai N800 Series, Installation Manual

Page: 65 / 102

5. CONTROL UNIT
59
Fig. 25: The signals of the I/O terminals on the standard I/O board, and a connection example.
Terminal Signal Description
+10 Vref Reference
potentiometer
1...10kΩ
Actual value
I=(0)
4...20mA
1 Reference output
AI1+ 2
Analogue input, voltage or current
Frequency reference
AI1- 3
Analogue input common, (current)
AI2+ 4
Analogue input, voltage or current
Frequency reference
AI2- 5
Analogue input common, (current)
24Vout 6 24V auxiliary voltage
GND 7 I/O ground
DI1 8 Digital input 1 Start forward
DI2 9 Digital input 2 Start reverse
DI3 10 Digital input 3 External fault
CM 11 DI1~DI6COMMON
*
24Vout 12 24V auxiliary voltage
GND 13 I/O ground
DI4
14
Digital input 4
DI5 15
Digital input 5
DI6 16 Digital input 6 Fault reset
CM 17 DI1~DI6COMMON
*
AO1+ 18
Analogue signal (+output)
Output frequency
AO1-/GND 19
Analogue output common / I/O ground
+24Vin 30
24V auxiliary input voltage
RS485 A Serial bus, negative
Modbus RTU
BACnet, N2
RS485 B Serial bus, positive
RO1 NC 21
RUN RO1 CM 22
RO1 NO 23
RO2 NC 24
FAULT RO2 CM 25
RO2NO 26
RO3 CM 32
READY
RO3 NO 33
mA
RUN
Standard I/O board
2-wire transmitter
Relay output 1
Relay output 2
Relay output 3
DI4
Open
Closed
Open
Closed
DI5
Open
Open
Closed
Closed
Freq. ref.
Analog input 1
Preset Freq. 1
Preset Freq. 2
Preset Freq. 3
N800A