AKD2G-S Installation Manual, Safety 1 | 8 Electrical Installation
8.16.4 Digital Inputs
The drive provides 8 digital inputs on X21. Dual axis drives and drives with built-in option IO or DX offer additional 4
inputs on X22 and 2 programmable Input/Outputs on X22. If X23 is built-in and not used for feedback or EEO
function, then it offers 4 additional programmable Input/Outputs.
All inputs can be used to initiate pre-programmed actions. A list of actions is included in WorkBench. If an input is
programmed, it must be saved to the drive.
The drive provides 4 safe digital inputs on X21 and X22. These inputs can be used as safe inputs, based on the
installed functional option (➜ # 184).
Maximum distance for unshielded I/O lines is 3 m inside the cabinet. If the I/O cable leaves the cabinet, it
must be EMC shielded.
Depending on the selected function, the inputs are high or low active. Digital input filter can be set in
WorkBench to change sensitivity of the inputs (see Online Help).
8.16.4.1 Digital-In 1 and 2
These inputs (IEC 61131-2 Type 1) are particularly fast and are therefore suitable for position latch functions. They
can also be used as 24 V inputs for electronic gearing (➜ # 139).
Technical characteristics
l
Floating, reference common line is DGND
l
High: 15 to 30 V/2 to 15 mA , Low: -5 to +5 V/<15 mA
l
Update rate: firmware reads hardware input state every 250 µs
l
High accuracy latch: motor feedback position or interpolated time is latched or captured within 2 µs of input signal
transition (with digital input filter set to 40 ns)
l
The AKD2G capture engine is polled every 62.5 µs (16 kHz) by the firmware
Wiring example
154 Kollmorgen | kdn.kollmorgen.com | June, 2023
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