30 ACS 300 User’s Manual
Chapter 4 - Control Connections
The stop input is active even when operating from the keypad,
allowing the normally closed contact from a motor overload relay
or other external interlock to stop the frequency converter when
operating from the keypad. Control voltage is connected to X1:7.
Parameter PARAM SET has value 1.
Table 4-5 3-wire digital input functions.
1)
Minimum Start pulse is 50 ms. Stop must be connected to
+24 V for Start to function.
2)
Minimum Stop pulse is 50 ms. If Start is active (+24 V), the
ACS 300 will restart after Stop pulse is connected to +24 V
Figure 4-4 3-wire recommended cabling and switch S1 selection.
Digital input Function Notes
DI1 Start
1)
Connect momentary +24 V DC to Start.
DI2 Stop
2)
Connect momentary 0V DC to Stop.
DI3 Reverse Connect +24 V DC to Reverse.
DI4 CS1 Constant speed (=CS) selection,
refer to Table 4-6.
DI5 CS2
OFF
ON
0
1
+24 V
DI1 Start
DI2 Stop
DI3 Reverse
DI4 CS1
DI5 CS2
MOL or
External
Interlock
Start
n.o.
Stop
n.c.
3.Wire
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