SLX9000 Adjustable Frequency Drives User Manual
9-44 For more information visit: www.eaton.com
MN04003020E
January 2009
PFC with interlocks and autochange between 2 pumps (OPTAA or OPTB5 option board
required)
Situation: 1 controlled drive and 1 auxiliary drive.
Parameter settings: 2.10.1 = 1
Interlock feedback signals used, autochange between pumps used.
Parameter settings: 2.10.4 = 4
The interlock feedback signals come from the digital input DIN2 (par. 2.1.17) and digital input
DIN3, (par. 2.1.18).
The control of pump 1 (par. 2.3.1 = 17) is enabled through Interlock 1 (DIN2, P2.1.17), the
control of pump 2 (par. 2.3.2 = 18) through Interlock 2 (par. 2.1.18 = 13)
Table 9-5: PFC-Control Input/Output Configuration with Two Pumps, MF4 – MF6 460V
Terminal Signal
1 +10V
ref
Reference output
2 AI1+ Voltage input frequency reference/DIN4
3 AI1- I/O Ground
4 AI2+ PID Actual Value
5 AI2-
6 +24V Control voltage output
7 GND I/O ground
8 DIN1 Start
9 DIN2 Interlock 1 (par 2.1.17 = 10)
10 DIN3 Interlock 2 (par 2.1.18 = 13)
11 GND I/O ground
18 AO1+ Output frequency
19 AO1- Analog output
A RS 485 Serial bus
B RS 485 Serial bus
21 RO1 Autochange 1 (Pump 1 control)
par 2.3.1. = 17
22 RO1
23 RO1
OPT-AA
X1
1 +24V Control voltage output max. 150 mA
2 GND Ground for controls, e.g for +24V and DO
3 DIN1 Preset speed 2, par 2.2.1 = 7
4 DIN2 Fault reset, par 2.2.2 = 4
5 DIN3 Disable PID (Freq reference from AI1), par 2.2.3 = 11
6 DO1 Ready, par 2.3.4 = 1
Open collector output, 50 mA/48V
X2
22 RO1/NO Autochange 2 (Pump 2 control), par 2.3.2 = 18
23 RO1/COM
mA
Reference
potentiometer
2-Wire
Transmitter
Actual
Value
I
(0)4 – 20mA
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