Page 51 - IDEC timer catalogue

Timers GT3 Series Instructions

Inputs Instructions, continued

For contact input, use gold-plated contacts to make sure that the residual voltage is less than 1V when the contacts are closed.

6 7 Switches & Pilot Lights
5
Reset Input Start Input Gate Input 3 4 8 9
2
1 11 10
Power
For transistor input, use transistors with the following specifi cations; VCE = 40V, VCES = 1V or less, IC = 50 mA or more, and ICBO = 50μA or less. The resistance
should be less than 1kΩ when the transistor is on. When the output transistor switches on, a signal is input to the timer.

6
5 7
Reset Input Start Input Gate Input 3 4 8 9 Display Lights
2
1 11 10
Power

Inputs: GT3A-1, -2, -3

Transistor output equipment such as proximity switches and photoelectric switches can input signals if they are voltage/current output type, with power voltage
ranges from 18 to 30V and have1V. When the signal voltage switches from H to L, a signal is input to the timer
Transistor Output Relays & Sockets
Circuit

Transistor
5, 6, 7
Input
Terminal
2
Inputs: GT3A-4, -5, -6
The start input initiates a time-delay operation and controls
Start Input No-voltage contact inputs and NPN open collector transis-
output status.
tor inputs are applicable. Timers
When the reset input is activated, the time is reset, and
Reset Input
contacts return to original state. 24V DC, 1mA maximum
The time-delay operation is suspended while the gate input
Gate Input Input response time: 50msec maximum
is on (pause). Terminal Blocks

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