Bonfiglioli EM-ENC-02 Expansion Module Engineering Configuration Guide

1. Digital port (EM-S1IOD)

Define ports as input (0) or output (1) through 558 (Operation mode).

When in input mode, the signal source can be selected in 558 (320=direct input, 520=inverse), and the signal can be mapped to logic such as fixed frequency switching (parameter 131 defines the third fixed frequency switching).

When in output mode, select the output function (such as operating status, faults, etc.) through 559. The specific function list can be found in the frequency converter operation manual.

2. Motor temperature monitoring (EM-MPTC)

Connect PTC thermistor (compliant with DIN 44081, response threshold of approximately 2.6 k Ω) or bimetallic switch (normally closed) to X410B. 1-2.

570 (Operation mode Motor temp.) can be selected from:

11: Warning only

12: Fault shutdown (immediate)

13-15: Fault shutdown delay of 1/5/10 minutes.

The simulated input EM-S1INA can also be used for temperature sensors (such as PT100), and mode 2 (temperature measurement) can be selected through 465. The actual temperature value can be viewed in parameter 253.

9、 Common fault diagnosis and troubleshooting

Fault code description, troubleshooting suggestions

F1402 Analog input signal fault (<1V/2mA) Check sensor wiring, confirm power supply and signal range, adjust 563 behavior

F30 encoder signal fault check A/B channel connection, confirm terminal resistance matching, check 494 pulse number setting

F31 encoder single channel missing measurement: Is there a differential signal between A+and A -, B+and B -

F32 encoder direction error: Swap A/B channels or set 493 to 104 (reverse)

F21nn system bus slave fault (nn=node ID) Check if the corresponding slave loses power or if the bus is short circuited, and check the terminal resistance

F2200 SYNC timeout: Confirm whether the master station sends SYNC, check 919 settings, and check bus load

F2201~F2203 RxPDO1-3 timeout check whether the corresponding TxPDO is being sent normally and whether the identifiers match

F2210 CAN bus BUS-OFF check whether the bus line is short circuited/open circuited, whether the baud rate is consistent, and whether the terminal resistance is correct

Debugging skills:

By using VPlus software (in conjunction with KP232 interface), real-time monitoring of bus messages, node status, and PDO data can be achieved.

For the new network, first set all node Node-IDs to -1 (turn off the bus), debug each frequency converter separately, and then gradually add them to the bus.