Operating Instructions

Table Of Contents
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3.2 Example of control connections
Table 11. Connection example, standard I/O board.
Standard I/O board
Terminal Signal Default
1 +10 Vref Reference output
2AI1+
Analog input,
voltage or current
*
*
Selectable with DIP switches, see Siemens BT300 Installa-
tion Manual
Voltage
3 AI1- Analog input common (current)
4AI2+
Analog input,
voltage or current
Current
5 AI2- Analog input common (current)
6 24Vout 24V aux. voltage
7 GND I/O ground
8 DI1 Digital input 1 Start FWD
9 DI2 Digital input 2 Start REV
10 DI3 Digital input 3 Fault
11 CM
Common A for DIN1-DIN6
**
**
Digital inputs can be isolated from ground. See Installation
Manual.
12 24Vout 24V aux. voltage
13 GND I/O ground
14 DI4 Digital input 4
Preset freq
select 1
15 DI5 Digital input 5
Preset freq
select 2
16 DI6 Digital input 6 Fault reset
17 CM Common A for DIN1-DIN6**
18 AO1+ Analog signal (+output)
Output fre-
quency
19 AO-/GND Analog output common
30 +24 Vin 24V auxiliary input voltage
ARS485
Serial bus, negative
BRS485 Serial bus, positive
Reference potentiometer
1...10 kW
Remote reference
4...20mA/0...10V
(programmable)
mA
To Relay board
1 or 2