Motorized Changeover Switches

● 101~104 Main power external indicator signal (Active AC220V/0.5A)

101-Indicator common null line

102-Main power indicator signal output

103-Main power ON signal output

104-Main power trip signal output

● 201~204 Backup power external indicator signal (Active AC220V/0.5A)

201-Indicator common null line

202-Backup power indicator signal output

203-Backup power ON signal output

204-Backup power trip signal output

● 301~302 Controller DC aux. power input (DC15V~30V/0.5A)

Its main purpose is to put an auxiliary. The power is the generator start delay time in Power grid-Generator mode. If there is no auxiliary, power, generator start delay time is 0s. If the generator start delay function is not required, there is no need to connect the auxiliary.

● 401~404 Fire linkage control terminal is used to remote control cutoff the ATS power supply after the fire alarm.

401, 402 Fire linkage control signal input terminal only connects to a set of NO passive contact point(if the signal from fire-fighting equipment is an active signal, you must first pass through a small relay, then connect the relay NO point to controller, otherwise will burn the controller). When the external contact point closed, the controller immediately control the switch transfer to OFF position to switch off the load power supply, at same time through 403 and 404 terminal to send the signal back to fire-fighting control center;

403, 404 Inside is a set of NO relay contact point, which is used for sending the fire-fighting movement signal back. When normal, the contact is in NO state; when the controller has a fire signal input and the switch is switched to the OFF position, 403 and 404 are closed. (Note: When the fire linkage function is turned on, the ATS will stop working. If you want the ATS to work again, you must clear the fire signal first, then switch the automatic/manual control switch once, and the ATS will resume normal work)

● 501~503 Generator start control output terminals

When the backup power source is the automatic start generator, the user can connect terminals 501~503 to the generator controller to realize the generator automatic start function. Terminals 501~503 have a 3A passive relay contact inside, 502 is the relay common terminal, 503 is the relay normally closed point, and 501 is the relay normally open point. In grid-generator mode, the controller is in automatic mode. When the main power is normal, 502 and 501 are closed, and 502 and 503 are open. If the main power fails and the backup power fails, 502 and 503 will be closed after the generator start delay time, and 502 and 501 will be open to send the generator start signal. After the generator starts successfully, it will automatically transfer to the backup power. When the standby power supply is normal, if the main power supply is restored, the main power supply will be transferred after the control of the recovery delay time, the main power circuit breaker will be closed, and then after the shutdown delay time 502 and 501 will be closed, and 502 and 503 will be disconnected, and a shutdown signal will be sent.