SNS20-28C Actuator with Internal Battery Back-up Installation, Operation & Maintenance Manual
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Battery Condition Test
1) Turn the power to the actuator Off.
2) Install a switch or jumper wire into J12 terminals 4 & 5.
3) Turn the actuator power back On.
4) If using a switch, close the Test Switch.
5) If the Battery Red LED on the Safe and Secure Board illuminates, the battery is low.
6) Turn the power back Off.
7) Remove the jumper or turn off the Test Switch.
8) Apply external power to the actuator and verify that the Blue LED illuminates.
9) Wait 8-10 hours for the battery to fully charge and close the Test Switch again.
10) If the Battery Green LED on the Safe and Secure Board illuminates, the battery is good and
is charged.
11) If the Red LED is comes back on, or is OFF, the battery is bad and needs to be replaced.
Power Test
1) Apply external power to the actuator. The Blue LED should illuminate.
2) If there is no Blue LED, check that the incoming power is connected properly to the
actuator & the breaker is on.
3) Next, verify that the wires are tight in the input connector.
4) If still no Blue LED, check the on board fuse (TR5 style – round) in the Safe & Secure
Board.
5) If the Power Input Fuse is blown, replace the fuse.
6)
If the fuse is good, the circuit board is bad and needs to be replaced.
7)
On modulating versions, a control input signal (4-20mA or 0-10vdc) needs to be present to
run the actuator.
