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63230-216-229-B1
Installation
ACE919CA and ACE919CC
RS485/RS485 Converters
Description and Dimensions
DE80039
Terminal block for two-wire RS485 link without distributed power supply
Female nine-pin sub-D connector, used to connect to the two-wire RS485
network with distributed power supply
One screw-type male nine-pin sub-D connector is supplied with the converter.
Power supply terminal block
1 Distributed power supply voltage selector switch, 12 V DC or 24 V DC
2 Protection fuse, unlocked by a 1/4 turn
3 ON/OFF LED: this LED is ON if the ACE919 is energized
4 SW1, parameter setting of two-wire RS485 network polarization and line
impedance matching resistors
Function SW1/1 SW1/2 SW1/3
Polarization at 0 V via Rp -470 Ω ON
Polarization at 5 V via Rp +470 Ω ON
DE80022
Two-wire RS485 network impedance
matching by 150 Ω resistor
ON
Converter Configuration when Delivered
b 12 V DC distributed power supply
b Two-wire RS485 network polarization and impedance matching resistors
activated
Male 9-pin sub-D connector supplied with the ACE919
Connection
DE51670
Two-Wire RS485 Link without Distributed Power Supply
b To 2.5 mm² (AWG 12) screw type terminal block
b L+, L-: two-wire RS485 signals
b Shielding
Two-Wire RS485 Link with Distributed Power Supply
b To connector female 9-pin sub-D
b Two-wire RS485 signals: L+, L–
b Distributed power supply: V+ = 12 V DC or 24 V DC, V- = 0 V
Power Supply
b To 2.5 mm² (AWG 12) screw type terminal block
b Reversible phase and neutral (ACE919CA)
b Grounded via terminal block and metal case (ring lug on back of case)
in.
(mm)
(105)
4.13
(85)
3.35
(105)
4.13
(45)
1.77
(65)
2.56
in.
(mm)
(56.4)
2.22
(16)
0.63
(36
1.4
(44.5)
1.75
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