24 ACS 300 User’s Manual
Chapter 4 - Control Connections
If S1, C is in the ON (1) position, the parameter settings are
locked and parameter values cannot be changed, but can
be displayed. When locked, control panel keypad control is
not allowed and “HARDWARE LOCK S1” message appears
on the control panel display if you try to use the panel keys.
Analog Input The analog input, AI, is used to set the speed reference
using an external potentiometer or analog signal. By setting
jumper X5, the input can be configured to accept either a
voltage signal of 0(2) to 10 V or a current signal of 0(4) to 20
mA. Refer to Figure 4-1. The analog input can scaled and
configured for joystick operation using the REF OFFSET
parameter as described on page 55. The AI FAULT parame-
ter described on page 64 is used to enable and disable sig-
nal loss protection. When the PI controller is activated, the
analog input is used only as the actual value (process feed-
back) input. Refer to the PI GAIN parameter on page 68.
Figure 4-3 Digital Input Configurations
Relay 1 output
Relay 2 output
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
REF
GND
AI+
GND
+24 V
DI1
DI2
DI3
DI4
DI5
AO+
GND
RO 11
RO 12
RO 13
RO 21
RO 22
RO 23
Terminal
block X1
Standard
Start/Stop
Reverse
Constant speed
Constant speed
ACC2/DEC2
3-wire
Start
Stop
Reverse
Constant speed
Constant speed
Motor
Potentio-meter
Start
Reverse
Increment frequency
Decrement frequency
Constant speed
OFF ON
0 1
0 1
OFF ON
0 1
OFF ON
Alternate
Start forward
Start reverse
Constant speed
Constant speed
ACC2/DEC2
OFF ON
0 1
Param set 2
Param set 2
Param set 2
Param set 2
DI 5
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