Terminals 1 - 5 (Programmable Digital Inputs); General Notes - Hitachi L100 IP Series Instruction Manual

Chapter 7 – Control circuit terminal functions

Terminals 1 - 5 (programmable digital inputs)

General notes

Several functions can be assigned to the terminals 1 through 5. Depending on the application these terminals
can be configured to be forward (FW) or reverse run (RV) inputs, multistage speed setting inputs (CF1-CF4),
reset input (RS), and so on. The terminal function configuration of inputs 1 - 5 is done using C 01 – C 05,
i.e. C 01 is used to set the function of digital input 1, C 02 is used to set the function of digital input 2, etc.
However, two inputs can not be assigned to an identical function at the same time.
The programmable digital inputs 1 - 5 are factory set as normally open contacts. So when a terminal's
function is to be activated, the digital input configured for this function has to be closed (i.e. the input
terminal must be connected to terminal P24). Likewise, deactivating of an input means opening this input.
Alternatively, the digital inputs can also be configured as normally closed contacts. To do this, the parameter
01 must be configured under functions C 11 – C 15 (corresponding to digital input 1 - 5). But there is an
exception for inputs configured as reset input (RS) or thermistor input (PTC). Those inputs can only be
configured as normally open contacts.
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