Bonfiglioli Vectron EM-IO-04 module KTY temperature measurement and digital port configuration

Fixed frequency extension

EM-IO-04 expands the fixed frequency to 8 groups through parameter 131 (Fixed frequency change over 3):

Fixed frequency parameter FF3=0 FF3=1

Fixed frequency 5 485 0 1

Fixed frequency 6 486 1 1

Fixed frequency 7 487 1 0

Fixed frequency 8 488 0 1

CAN system bus configuration

The system bus interface of EM-IO-04 has optoelectronic isolation characteristics, enhancing its anti-interference ability in industrial electromagnetic environments.

7.1 Terminal resistor configuration (dip switch S1/S2)

Passive terminal (S1=ON, S2=OFF): Conventional terminal matching

Active terminal (S1=ON, S2=ON): Improve the shape of CAN signal edges

Factory default: S1 and S2 are both OFF

7.2 Node ID and Baud Rate

Parameter Description Range Factory Value

900 Node-ID-1~63-1 (disabled)

903 Baud-Rate 3~8 —

Set rules:

Node ID=-1: System bus disabled

Node ID=0: defined as the main station (only one is allowed)

Node ID=1~63: Slave address

7.3 Virtual Links

EM-IO-04 supports horizontal data transmission between frequency converters through TxPDO/RXPDO:

TxPDO channel Boolean parameter Word parameter Long parameter

TxPDO1 946~949 950~953 954~955

TxPDO2 956~959 960~963 964~965

TxPDO3 966~969 972~975 976~977

Digital signal state coding

The digital input/output status is read as decimal values through parameters 250 (Digital inputs) and 254 (Digital outputs) and needs to be converted to binary:

Position allocation:

Bit 3 (decimal 8): Digital port EM-S1IOD output status (when configured as output)

Bit 7 (decimal 128): Digital port EM-S1IOD input status (configured as input)

Bit 8 (256 decimal): Digital input EM-S2IND

Bit 9 (decimal 512): Digital input EM-S3IND

Quick Reference Table for Fault Codes

Fault code description and troubleshooting suggestions

F0400 motor temperature exceeding limit or temperature sensor connection fault inspection X410B. 1-2 wiring and sensor status

F1450 KTY temperature sensor measurement fault check whether S3 is on the left side (KTY mode) and whether the sensor resistance is within the effective range

F21nn system bus slave fault check corresponding node (nn hexadecimal)

F2200 SYNC message timeout check for main station SYNC generation

F2210 CAN bus BUS-OFF check for physical connections, terminal resistance, and baud rate

Bus load planning reference

Baud rate (kBaud) message transmission time (μ s)

1000 140

500 280

250 560

125 1120

100 1400

50 2800

Load assessment: A total load rate of ≤ 80% for all TxPDOs is normal, and>90% is unacceptable.