Page 142 - Twomaster_General_Catalogue_2024_2025

General Catalouge - 2024

TWOMASTER-Pro S Controller 4P Wiring TWOMASTER-Pro E Controller 4P Wiring
I Power II Power I Power II Power
L1 L2 L3 N L1 L2 L3 N L1 L2 L3 N L1 L2 L3 N
Output 220VAC Output 220VAC
Normal Power Normal Power
Normal Power ON Normal Power ON
Output 220VAC Output 220VAC
Reserve Power Reserve Power
Reserve Power ON Reserve Power ON
DC24V Aux. Power DC24V Aux. Power
Controller Fire Linkage for S controller / Controller Fire Linkage for S controller /
Current Transformer input for S Plus controller
Generator Control Generator Control
Display Controller Display Controller 601 A +
602 B - RS 485 Communication interface
603 GND
L1 L2 L3 N L1 L2 L3 N
Load Load
Twomaster-Pro S Controller terminal wiring instruction Twomaster-Pro E Controller terminal wiring instruction
101-103 : Main Power external Indicator signal output ( Active AC230V 0.5A) 101-103 : Main Power external Indicator signal output ( Active AC230V 0.5A)
101—Indicator common null line and 3P null line input 101—Indicator common null line and 3P null line input
102—Main power indicator signal output 102—Main power indicator signal output
103—Main power ON signal output 103—Main power ON signal output
201～203：Backup power external indicator signal (Active AC230V/0.5A) 201～203：Backup power external indicator signal (Active AC230V/0.5A)
201—Indicator common null line and 3P null line input 201—Indicator common null line and 3P null line input
202—Backup power indicator signal output 202—Backup power indicator signal output
203—Backup power ON signal output 203—Backup power ON signal output
301～302 aux. power DC24V input 301～302 aux. power DC24V input
301--DC24V “+” input 301--DC24V “+” input
302– DC24V “-” input 302– DC24V “-” input
401～404 fire linkage control signal input and feedback signal output 401～404 fire linkage control signal input and feedback signal output
401,402-- Fire linkage signal passive input, 401,402-- Fire linkage signal passive input,
403,404– Feedback signal when ATS transfer to OFF position 403,404– Feedback signal when ATS transfer to OFF position
501-503 : Generator start control signal output 501-503 : Generator start control signal output
501--Control signal NC point 501--Control signal NC point
502--Control signal common point 502--Control signal common point
503--Control signal NO point 503--Control signal NO point
601~603: RS485 Communication terminal 601--A+ , 602– B- , 603--GND
S Plus Controller terminal wiring instruction
401～404 current signal input, 100mA

TWOMASTER-Pro S Controller Terminal Definition TWOMASTER-Pro E Controller Terminal Definition
40A-630A 40A-630A

I power II power I power II power
X X AC 230V Output I Power Indication II Power Indication AC 230V Output X X X X AC 230V Output I Power Indication II Power Indication AC 230V Output X X
I ON II ON I ON II ON
X X X X
COM COM
0-OFF Emergency Stop Input 0-OFF Emergency Stop Input
DC24V Fire Linkage Control Aux. Power DC24V
Aux. Power
4 Feedback Signal ATS OFF 4 Feedback Signal ATS OFF
Fire Linkage Control
601 A+ Gen. Control
602 B- Rs485 Modbus
Gen. Control
603 GND Split interface
Split interface

Note: 1. If fire-fighting equipment output signal is active power, the signal source need to change over the line connection, for example to connect through a relay to change the
line connection,and connect the relay NO point to 401,402, when NO contact point closed ATS transfer to OFF position. When the fire linkage function is active, the ATS
will stop working,if want the ATS to working again, must first clear up the fire-fighting signal and then the ATS will recovery normal operation. If it is intelligent type , need
switching Manual/Auto button one time.
2. When the backup power is Auto start generator, when normal power is good 501 and 502 closed, 502 and 503 open; When Normal power is fault, 501 and 502
open, 502 and 503 closed.
3. RS485 Communication interface manual please refer to communication protocol.

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