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23 Oct 2025 3 min read

32-Channel RS485 NC/NO lift controller Installation

Premise This configuration guide will describe how to configure and wire the 32-Channel RS485 NC/NO lift controller with the NEO ACR V2 Specifications Relay output parameters Refer to the following table according to different brands and different ...

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Premise

This configuration guide will describe how to configure and wire the 32-Channel RS485 NC/NO lift controller with the NEO ACR V2

Specifications

Relay output parameters

Refer to the following table according to different brands
and different models. Check list for relay parameters (loop voltage 12V/24V)

Check list for relay parameters (loop
voltage 12V/24V)

Brand

Model

Contact
Type

Contact
Volume

OMROM

G2R-1 (w/
base)

Open and
Close

10A / 250V AC

10A / 30AV DC

Transistor output parameter

Output transistor model: IRF9540N (Field-effect tube)

Load voltage: 12~24VDC

Continuous load current: <=2A (with radiator)

Instant maximum current: 16A (continuous time 300mS)

Output type: output voltage after trigger : 12~24VDC;
Floating without trigger

Output insulation: sustainable voltage±1500V

Output indicator: attached

Digital input parameters

Input way: compatible with NPN/PNP

Triggering voltage: 3.3V / 5V / 12V / 24V optional

Input insulation: Sustainable voltage ±1500V

Input indicator: attached

Current supply requirement parameters

Working voltage: default voltage: 24V; 12V optional

Maximum voltage: 24V(18~30V) / 12V(10~15V)

Current requirement: relay output mode 0.2A (4 paths
triggered)

0.95 A (32 paths triggered)

transistor output mode 0.5A(16 paths triggered)

pure input mode: 0.3A(32 paths triggered)

Reverse connection protection: all products applicable

Communication circuit parameter

Insulation: all insulated

Insulation voltage: ±1500V

Communication protocol: Modbus-RTU

Baud Rate：1200/2400/4800/9600/19200/38400/57600/115200
BPS

Data format: 1 start byte 8 data bytes parity checking, 1 or
2 stop bytes

Maximum panel points: 32 modules sharing the BUS

Transmission distance: ≥800M (Double twisted cable)

Screening terminals: support

Wiring

ACR RS485A (Brown) to A+ on the relay

ACR RS485B (Purple) to B- on the relay

12V and GND as marked (from external power supply)

SG – Common Ground with GND (Not necessary for the ACR V2)

DIP Switch Configuration

For the purpose of operation with the KAS ACR V2, the DIP Switch configuration is as follows:

For the purpose of operation with 3rd party products, below is are the settings for the DIP switches:

Pins 1-2: Data Verification

Verification Type	Pin 1	Pin 2
No Verification 1 stop byte	OFF	OFF
No Verification 2 stop bytes	OFF	ON
Odd Verification 1 stop byte	ON	OFF
Even Verification 1 stop byte	ON	ON

Pins 3-5: Baud Rate

Baud Rate	Pin 3	Pin 4	Pin 5
1200	OFF	OFF	OFF
2400	OFF	OFF	ON
4800	OFF	ON	OFF
9600	OFF	ON	ON
19200	ON	OFF	OFF
38400	ON	OFF	ON
115200	ON	ON	ON

Pins 6-10: Relay Index Number (Module Hardware
Address)

Index Number	Pin 6	Pin 7	Pin 8	Pin 9	Pin 10
0	OFF	OFF	OFF	OFF	OFF
1	OFF	OFF	OFF	OFF	ON
2	OFF	OFF	OFF	ON	OFF
3	OFF	OFF	OFF	ON	ON
4	OFF	OFF	ON	OFF	OFF
5	OFF	OFF	ON	OFF	ON
6	OFF	OFF	ON	ON	OFF
7	OFF	OFF	ON	ON	ON
8	OFF	ON	OFF	OFF	OFF
9	OFF	ON	OFF	OFF	ON
10	OFF	ON	OFF	ON	OFF
11	OFF	ON	OFF	ON	ON
	OFF	ON	ON	OFF	OFF
13	OFF	ON	ON	OFF	ON
14	OFF	ON	ON	ON	OFF
15	OFF	ON	ON	ON	ON
16	ON	OFF	OFF	OFF	OFF
17	ON	OFF	OFF	OFF	ON
18	ON	OFF	OFF	ON	OFF
19	ON	OFF	OFF	ON	ON
20	ON	OFF	ON	OFF	OFF
21	ON	OFF	ON	OFF	ON
22	ON	OFF	ON	ON	OFF
23	ON	OFF	ON	ON	ON
24	ON	ON	OFF	OFF	OFF
25	ON	ON	OFF	OFF	ON
26	ON	ON	OFF	ON	OFF
27	ON	ON	OFF	ON	ON
28	ON	ON	ON	OFF	OFF
29	ON	ON	ON	OFF	ON
30	ON	ON	ON	ON	OFF
31	ON	ON	ON	ON	ON