SINUS PENTA
PROGRAMMING GUIDE
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38. ENCODER/FREQUENCY INPUTS MENU
38.1. Overview
Three quick acquisition digital inputs are available in the Sinus Penta control board:
• MDI6/ECHA/FINA;
• MDI7/ECHB;
• MDI8/FINB.
These inputs can be used as incremental encoder reading (encoder A) or as frequency inputs. In addition, if ES836 or
ES913 optional board is used (see the Sinus Penta’s Motor Drives Accessories – User Manual), an additional encoder
reading (encoder B) is allowed.
NOTE If MDI6 and MDI7 are used for encoder reading, only Push–Pull encoders can be used.
NOTE
For the reversal of the incremental
encoder speed measure, properly set up parameter
C199.
38.1.1. WHEN ES836 IS NOT USED
• Incremental Encoder reading:
Digital inputs MDI6 and MDI7 are used for reading the two channels of a 24V push–pull encoder powered directly by the
Sinus Penta control board (see the Sinus Penta’s Installation Guide).
No function can be programmed for MDI6 and MDI7; if you attempt to program MDI6 and MDI7, alarm A082 Illegal
Encoder Configuration will trip when the ENABLE function is activated.
• Reading a Frequency Input:
Digital inputs MDI6 or MDI8 can be used.
If MDI6 is programmed as a frequency input (FINA) with C189, no other function can be programmed; otherwise, alarm
A100 MDI6 Illegal Configuration trips when the ENABLE function is activated.
If MDI8 is programmed as a frequency input (FINB) with C189, no other function can be allocated to MDI8, and ES836
or ES913 optional board must not be applied to the power drive, otherwise, alarm A101 MDI8 Illegal Configuration trips
when the ENABLE function is activated.
• Reading a Frequency Input and an Encoder:
MDI6 and MDI7 are used to read the push–pull encoder, and MDI8 is used to read the frequency input. The following
alarms may trip:
• A082 Illegal Encoder Configuration, if additional functions are allocated to MDI6 or MDI7;
A101 MDI8 Illegal Configuration, if additional functions are allocated to MDI8 or if the power drive detects the
presence of ES836 or ES913 optional board.