4601 I-V Meter Operation Manual
5.4.3 Relay Life Cycle Detection
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5.4.3
Relay Life Cycle Detection
The 4601 stores the relay ON/OFF operations of the output unit, and generates an alarm when the relay
life cycle is reached.
Every time the output relay in the output unit is switched, the relay counter value increments. If the value
has reached 1,000,000 times or more when the self test is executed or the output status is set to Standby,
an error is displayed.
The 4601 operates normally even if this alarm is displayed, however measurements are not guaranteed.
Thus, when the alarm is displayed, replace the output unit.
For information on how to replace the output unit, refer to Section 1.3, "Output Unit."
The 4601 is equipped with ten relay counters to control multiple output units.
When using more than one output unit, change the counter select number at the time of output unit replace-
ment.
The counter specified by the counter select number counts up, and its counter value is checked.
Figure 5-10 Relay Counter Structure
Each counter counts up to 999,999,999 maximum.
Each counter can be read out and reset from the menu or by using the remote control commands.
The relay counter is cleared according to the following procedure:
