ACS 400 User’s Manual
125
5 = DI5
Interlocks function is in use. Depending on the number of motors, the digital inputs are reserved for the
interlock signals according to the following table.
6 =
EXTERNAL
IO
Interlocks function is in use. All interlock signals are taken through external I/O modules. Depending on the
number of motors, the digital inputs are reserved for the interlock signals according to the following table.
Interlock signals are active low, i.e. an interlock is active when the corresponding interlock signal is absent.
If a start command is given when the interlock signal of the speed regulated motor is active, the ACS 400
will not start, and will show alarm 30 (INTERLOCK) on the control panel.
Each Interlock circuit should be wired as follows:
1. A contact of the On/Off switch of the motor must be wired to the Interlock circuit. PFC logic detects if a
motor is switched off. The logic does not try to start the switched-off motor; the next available motor is
started instead.
2. A contact of the motor thermal relay (or another protective device in the motor circuit) must be wired to
the Interlock input. PFC logic detects if the thermal relay is activated. The motor is stopped.
Code Description
Interlock signals
No of aux. motors
(param. 8117)
ACS 400 digital
inputs
NDIO module 1
NDIO module 2
0
DI1-DI4: free
DI5: Motor 1
Not used
Not used
1
DI1-DI4: free
DI5: Motor 1
DI1: Motor 2
DI2: Unused
Not used
2
DI1-DI4: free
DI5: Motor 1
DI1: Motor 2
DI2: Motor 3
Not used
3
DI1-DI4: free
DI5: Motor 1
DI1: Motor 2
DI2: Motor 3
DI1: Motor 4
DI2: Unused
Interlock signals
No of aux. Motors
(param. 8117)
ACS 400 digital
inputs
NDIO module 1
NDIO module 2
0
DI1-DI5: free
DI1: Motor 1
DI2: Unused
Not used
1
DI1-DI5: free
DI1: Motor 1
DI2: Motor 2
Not used
2
DI1-DI5: free
DI1: Motor 1
DI2: Motor 2
DI1: Motor 3
DI2: Unused
3
DI1-DI5: free
DI1: Motor 1
DI2: Motor 2
DI1: Motor 3
DI2: Motor 4
http://nicontrols.com
Summary of Contents for ACS 400
Page 3: ...http nicontrols com ...
Page 5: ...http nicontrols com ...
Page 7: ...iv ACS 400 User s Manual http nicontrols com ...
Page 45: ...34 ACS 400 User s Manual http nicontrols com ...
Page 52: ...ACS 400 User s Manual 41 Motor Will Not Run http nicontrols com ...
Page 53: ...42 ACS 400 User s Manual Motor Stalls during Acceleration http nicontrols com ...
Page 54: ...ACS 400 User s Manual 43 Overvoltage Fault Indication http nicontrols com ...
Page 55: ...44 ACS 400 User s Manual Overcurrent Fault Indication http nicontrols com ...
Page 56: ...ACS 400 User s Manual 45 Overload Fault Indication http nicontrols com ...
Page 57: ...46 ACS 400 User s Manual Undervoltage Fault Indication http nicontrols com ...
Page 58: ...ACS 400 User s Manual 47 External Fault Indication http nicontrols com ...
Page 59: ...48 ACS 400 User s Manual No Operator Display http nicontrols com ...
Page 75: ...64 ACS 400 User s Manual http nicontrols com ...
Page 161: ...150 ACS 400 User s Manual http nicontrols com ...
Page 167: ...156 ACS 400 User s Manual http nicontrols com ...
Page 177: ...166 ACS 400 User s Manual http nicontrols com ...
Page 179: ...168 ACS 400 User s Manual ACS 400 NEMA Type 1 Enclosure R2 Frame Size http nicontrols com ...
Page 180: ...ACS 400 User s Manual 169 ACS 400 NEMA Type 1 Enclosure R3 Frame Size http nicontrols com ...
Page 181: ...170 ACS 400 User s Manual ACS 400 NEMA Type 1 Enclosure R4 Frame Size http nicontrols com ...
Page 182: ...ACS 400 User s Manual 171 ACS 400 NEMA Type 12 4 Enclosure R1 Frame Size http nicontrols com ...
Page 183: ...172 ACS 400 User s Manual ACS 400 NEMA 12 4 Enclosure R2 Frame Size http nicontrols com ...
Page 184: ...ACS 400 User s Manual 173 ACS 400 NEMA Type 12 4 R3 Frame Size http nicontrols com ...
Page 185: ...174 ACS 400 User s Manual ACS 400 NEMA Type 12 4 R4 Frame Size http nicontrols com ...
Page 186: ...http nicontrols com ...