The T1011 Cycle Timer is an enhanced function cycle timer which allows the user to repetitively turn on and off a 24 VAC output to control any load device rated at up to 0.8 Amps 20 watt at 24 VAC such as the HGS Engineering D1015 or D1008 Drivers, or a contactor. The ON and OFF times are separately adjustable, and are independently selectable for time adjustments from ½ to 60 seconds, or 30sec to 1 hour. The T1011 also has a selectable Night Mode feature. In this mode, instead of taking the OFF time from the OFF TIME control, the unit takes its time from the NIGHTMODE control which is adjustable from 2 minutes to 4 hours. This is enabled whenever ambient light drops below a set level.

A. Installation

NOTE: As with all electronic devices, the T1011 should be plugged into a surge protection device to protect it from power line surges.

To install the unit, simply plug the load device you wish to switch into the connector J2 on the bottom right of the unit. Wire the power cord to the transformer and plug the other end into the connector J1 on the bottom left of the unit.

Set the On and Off times, and plug the transformer. The T1011 has no On/Off switch. The unit begins to operate in the ON TIME mode as soon as the unit is plugged in.

B. Operation

1. Timer Operation

The T1011 is a cycle timer. This means that the unit constantly cycles, or alternates between two modes, an ON TIME mode, and an OFF TIME mode. In the ON TIME mode, the load device is turned on. In the OFF TIME, the load device is turned off.

2. Night Mode Operation

This mode supplements the basic timer operation. When on, the Timer OFF TIME is replaced with the NIGHT MODE off time. When this is finished, the ON TIME will start again. When the ON TIME is finished, another NIGHT MODE off time will start

To enable Night Mode, the Night Mode Switch must be ON. The unit will operate as before until the ambient light drops below a set level for more than 15 seconds. If the unit is in the ON TIME Mode the NIGHT MODE off time will start as soon as the present ON TIME finishes. If it is in OFF TIME already, the present OFF TIME will be extended by the NIGHT MODE off time.

The Night Mode off times continue either until the Night Mode switch is turned off, or ambient light raises above the set level for more than 15 seconds. If it is in the off time, it will immediately start to go into ON TIME Mode no matter how much time is left.

The 15 second delay prevents Night Mode being triggered by momentary flashes of light. If you wish to check something, it will allow you to turn on the lights in the darkened room for up to 15 seconds when the unit is in the NIGHT MODE off time, without triggering an immediate ON TIME.

If you want the T1011 to operate with NIGHT MODE off times all the time regardless of light level, cover the LDR window beside the ON TIME light with a piece of black tape.

C. Controls

D. Specifications

1. Power Input J1 - 24VAC at 0.8 amps maximum

2. Output J2 - 24VAC at 0.8 amps maximum