DOC-0017-04-EN: AC20 Series - Hardware Installation Manual         
144 (154)  DOC-0017-04-EN-A 22.03.2023  
13.5  Encoder Feedback Option Card Ratings 
 Encoder Inputs 
Input Threshold: 
-  Low level = 1.8V (suitable for 5V TTL, RS422, RS485 level input 
signals)  
-  High level = 6.5V (suitable for 10V to 24V HTL level input signals) 
Signaling Type: 
Counting Modes: 
Clock & Direction 
Clock 
Maximum Count 
250kHz 
Isolated: 
-  Input terminals to inverter 0V 
-  Input to input terminals (A to B channels) 
 
 Power Supply Output 
Type: 
Selectable Output Voltage:  
-  5V  
-  12V  
-  15V 
-   20V 
Maximum Output 
Current: 
If 1x option card only fitted, output limited to 1.6W / 250mA:  
-  250mA @ 5V 
-  133mA @ 12V 
-  107mA @ 15V 
-  80mA @ 20V 
If 2x option cards fitted, output limited to 0.8W / 125mA (each):  
-  125mA @ 5V 
-  67mA @ 12V 
-  53mA @ 15V 
-  40mA @ 20V 
Isolated: 
-  Output terminal to inverter 0V 
-  Output terminal to user 24V supply