What To Do If A Problem Occurs - Citizen SA-SD Operation Manual

8-2 What to Do If a Problem Occurs

Problem
Power does not turn ON.
The measurement remains
unchanged.
Measurements are
inaccurate.
Pressing keys has no
effect.
Please perform these checks
Is the power supply connected correctly?
Is power being supplied correctly?
Has the power been connected with the polarity (+/−) reversed?
Is the power voltage correct?
Is the current capacity sufficient?
Is a hold signal being input?
When a hold signal is being input, "HOLD" is displayed in the lower right
corner of the display.
Turn the power OFF, and then disconnect and re-connect the detector.
Is the detector installed securely, with no play?
Is the measurement terminal loose?
Is the detector being subjected to any excessive vibration or impacts?
For example, when a detector is put on a guide rail and moved up and
down using an air cylinder, the impact sustained from a strong collision with
the mechanical stopper at the upper end (back clearance side) may cause
erroneous counting. Install a shock absorber or other means of softening
the impact, reduce the air cylinder operation speed, or take other
appropriate measures.
Is the spindle moving up and down correctly?
If the spindle is tightened excessively during installation, spindle operation
may be affected.
Is the key lock in operation?
To unlock keys, refer to "5-9 Releasing Key Lock."
8- 2