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Ramsey Electronics UT5A Instuction Manual page 21

Universal timer

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2. For an External Control Voltage remove the Shorting Block from
JMP5. Connect an external supplies (0 to VCC) positive lead to J3 pin 1
and its negative lead to J3 pin 2.
3. To use onboard Control Voltage Adjust install a shorting block across
both pins of JMP5.
Reset Mode:
1.
For External Reset connect a momentary closed switch between J3
pins 2 and 3.
2. For Onboard Reset Leave J3 pin 3 open and press S2.
Output Connections:
1. For a digital Non-inverted signal install a Shorting Block across both
pins of JMP7. Connect J4 pin 1 to the load circuits signal input. Connect
J5 pin 1 to the load circuits ground.
2. For a digital Inverted signal remove the Shorting Block from JMP7.
Connect J5 pin 2 to the load circuits signal input. Connect J5 pin 1 to the
load circuits ground.
3. To connect a load such as a relay or lamp so that the load is
energized when the output of the timer is high remove the Shorting Block
from JMP7. Connect the positive lead (if applicable) of the load to J5 pin
2. Connect the negative lead (if applicable) of the load to J5 pin 1.
4. To connect a load such as a relay or lamp so that the load is
energized when the output of the timer is low install a Shorting Block
across both pins of JMP7. Connect the positive lead (if applicable) of the
load to J4 pin 1. Connect the negative lead (if applicable) of the load to J5
pin 1.
Power Connections:
1. Connect a power sources (5 to 15 volts DC) positive lead to J1 pin 1
and its negative lead to J1 pin 2.
2. It is time to decide if you are going to use Timer Power or a separate
power supply (3 to 24 volts DC) to power the Timer Output Circuits. To
use Timer Power install a Shorting Block across the pins of JMP1. If you
are going to use a separate supply remove the Shorting Block at JMP1.
Connect your separate supplies positive lead to J1 pin 3 and the negative
lead to J1 pin 2.
UT5A  23

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