Control features (continued), Remote control features, Inphase monitor for motor load transfer – TRENDnet Series 300 User Manual

Page 16: Load disconnect feature, Delay before transfer, Delay after transfer, Remote test (terminals cp6–7), Bypass transfer time delay (cp12–13), Remote transfer to emergency (cp8–9), Inhibit transfer to emergency (cp10–11)

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CONTROL FEATURES (continued)

5--4

INPHASE MONITOR

FOR MOTOR LOAD TRANSFER

Inphase monitoring logic controls transfer and retransfer
of motor loads, so that inrush currents do not exceed
normal starting currents. It avoids nuisance tripping of
circuit breakers and mechanical damage to motor
couplings.

The Motor Load Transfer feature is built into the
controller. DIP switch S1 (actuator 5) activates this
feature: right = ON, left = OFF.

FUNCTION

S1 DIP SWITCH

enable

Actuator 5 on

5

disable

Actuator 5 off

5

Shaded DIP switches are standard factory settings.

If the Motor Load Transfer feature is enabled,

it will be activated following the Load

Disconnect Feature Delay Before Transfer

delay.

Note

LOAD DISCONNECT FEATURE

Connect external circuits to the terminals indicated on the
Wiring Diagram provided with the ATS.

The double throw (Form C) contact is rated for 28 VDC or
120 VAC (5 amps resistive). The contact operates prior to
a selectable 0, 3, 10, or 20 second delay before transfer of
the Automatic Transfer Switch. The contact resets either
immediately following transfer or after the same delay as
set for pre–signal before transfer.

Time delay between the load disconnect control signal
and initiation of transfer is set on the controller with DIP
switch S2 (actuators 6, 7, 8) as shown below:

Delay Before Transfer

LD TDBT

S2 DIP SWITCH

0 (disable)

Actuator 7 on

Actuator 8 on

8

7

3 seconds

Actuator 7 on

Actuator 8 off

8

7

10 seconds

Actuator 7 off

Actuator 8 on

8

7

20 seconds

Actuator 7 off

Actuator 8 off

8

7

Shaded DIP switches are standard factory settings.

Delay After Transfer*

LD TDAT

S2 DIP SWITCH

enable

Actuator 6 on

6

disable

Actuator 6 off

6

*Enabling the Delay After Transfer will cause the control
signal to reset after the same delay as set for the Delay
Before Transfer.

REMOTE CONTROL FEATURES

These remote control features require a customer–supplied normally closed contact suitable for a 5 V dc low energy
circuit. Refer to the Wiring Diagram provided with the ATS. Activate appropriate DIP switch S2 actuators below.

Remote Test (terminals CP6–7)

RTSW

S2 DIP SWITCH

disable

Actuator 3 on

3

enable

Actuator 3 off

3

Bypass Transfer Time Delay (CP12–13)

TD E/N BYP.

S2 DIP SWITCH

disable

Actuator 1 on

1

enable

Actuator 1 off

1

Remote Transfer to Emergency (CP8–9)

RT /E

S2 DIP SWITCH

disable

Actuator 2 on

2

enable

Actuator 2 off

2

Inhibit Transfer to Emergency (CP10–11)

N/E INHIB.

S2 DIP SWITCH

disable

Actuator 4 on

4

enable

Actuator 4 off

4

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