
Functions
5.3 Command sources
Frequency inverter
94
Operating Instructions, 08.10. 2008, t.b.d.
5.3.2
Assigning functions to digital inputs
Assigning control commands to digital inputs as command sources [P0701…P071x]
The digital inputs are pre-assigned with certain control commands in the factory. However,
these digital inputs can be freely assigned to a control command. Depending on the Control
Unit version, SINAMICS frequency inverters are equipped with up to 9 digital inputs.
Table 5- 12 Factory setting of the digital inputs
Terminal no.: Digital input no.
Control command
Available in CU...
Terminal 5: Digital input 0 (DI0)
Switch motor on/off (ON/OFF1)
Terminal 6: Digital input 1 (DI1)
Reverse direction of rotation
Terminal 7: Digital input 2 (DI2)
Fault acknowledgment
Terminal 8: Digital input 3 (DI3)
Selects fixed frequency 1
Terminal 16: Digital input 4 (DI4)
Selects fixed frequency 2
Terminal 17: Digital input 5 (DI5)
Selects fixed frequency 3
CU240S
CU240S DP
CU240S PN
CU240S DP-F
CU240S PN-F
Terminal 40: Digital input 6 (DI6)
Selects fixed frequency 4
Terminal 41: Digital input 7 (DI7)
Blocked
Terminal 42: Digital input 8 (DI8)
Blocked
CU240S
CU240S DP
CU240S PN
Table 5- 13 Changing the digital input settings
Terminal no.: Digital input no.
Parameter
Description
P0003 = 2
Extended access to the parameters
Terminal 5: Digital input 0 (DI0)
P0701 = …
Terminal 6: Digital input 1 (DI1)
P0702 = …
Terminal 7: Digital input 2 (DI2)
P0703 = …
Terminal 8: Digital input 3 (DI3)
P0704 = …
Terminal 16: Digital input 4 (DI4)
P0705 = …
Terminal 17: Digital input 5 (DI5)
P0706 = …
Terminal 40: Digital input 6 (DI6)
P0707 = …
Terminal 41: Digital input 7 (DI7)
P0708 = …
Terminal 42: Digital input 8 (DI8)
P0709 = …
Possible values for P0701 to P0709:
0: Digital input disabled
1: Switch motor on/off (ON/OFF1)
2: Activate motor CW
3: Motor coasts to standstill (OFF2)
4: Rapid stop with ramp (OFF3)
9: Fault acknowledgement
10: Jog mode CW
11: Jog mode CCW
12: Change direction of rotation (reverse)
13: Increase frequency of motorized potentiometer
14: Increase frequency of motorized potentiometer
15: Select fixed frequencies (bit 0)
16: Select fixed frequencies (bit 1)
17: Select fixed frequencies (bit 2)
18: Select fixed frequencies (bit 3)
25: Enable signal for DC brake
27: Enable signal for PID technology controller
29: External fault
33: Disable additional frequency setpoint
99: The digital input can be freely used for the BICO technology