I472 GB I 01 19
31100284
29
G
B
5.6.7 Control of the variable speed drive by EXCRDU1 remote keypad
EXCRDU1 remote display unit can control up to 32 starters in contemporary at choice between variable speed drives VLB3 series and soft starters ADXL series, connected in RS485.
NOTE.
– The terminals “TA” and “TB” of the RS485 port of the VLB3 have the polarity reversed
compared to the terminals “A” and “B” of the remote display unit EXCRDU1.
– If the VLB3 is the last node of the RS485 network, is necessary to insert the bus
terminating resistor (integrated into VLB) by setting in position “ON” the dip-switch
“R”.
Otherwise, you must leave the dip-switch “R” in position “OFF”.
VLB
Dip-switch
R = terminating resistor
