Electrical installation 
  4.10 Signal connections 
Inverter chassis units 
Operating Instructions, 07/2016, A5E00331449A 
111 
X541: 4 non-floating digital inputs/outputs 
Table 4- 42  Terminal strip X541 
 
 
Voltage: +24 V DC 
Max. total load current of +24 V auxiliary voltage for 
terminals X540 and X541 combined: 150 mA 
: 
Voltage: -3 … 30 V 
Power consumption, typical: 10 mA at 24 V DC 
Input delay: 
- for "0" to "1": Typ. 50 μs 
- For "1" to "0". Typ. 100 μs 
: 
Voltage: 24 V DC 
Max. load current per output: 500 mA 
Max. total current of outputs (including currents to 
the inputs): 100 mA / 1 A (can be parameterized) 
Continuously short-circuit proof 
: 
- For "0" to "1": Typ. 150 μs at 0.5 A resistive load 
(500 μs maximum)  
- For "1" to "0": Typically 50 μs at 0.5 A resistive load 
: 
- For resistive load: Max. 100 Hz 
- For inductive load: Max. 0.5 Hz 
- For lamp load: Max. 10 Hz 
5  DI/DO 11 
1  +24 V 
Max. connectable cross-section: 1.5 mm
2
1) 
  DI/DO: Digital input/output: M: Electronics ground 
 
 
Note 
Open input 
An open input is interpreted as "low".
 
 
Note 
If the 24 V supply is briefly interrupted, th
en the digital outputs are deactivated during this