Mitsubishi Electric C80 Series Connection And Set Up Manual page 66

C80 Series Connection and Setup Manual
4 General Specifications
*1: Overcurrent protection
The overcurrent protection device shuts off the 5V, 24VDC circuit and stops the system if the current flowing in the
circuit exceeds the specified value.
The LED of the power supply module is turned off or lights up in dim green when voltage is lowered.
If this device is activated, switch the input power supply off and eliminate the cause such as insufficient current
capacity or short. Then, a few minutes later, switch it on to restart the system.
The initial start for the system takes place when the current value becomes normal.
*2: Overvoltage protection
The overvoltage protection device shuts off the 5VDC circuit and stops the system if a voltage of 5.5VDC or more is
applied to the circuit.
When this device is activated, the power supply module LED is switched OFF.
To restart the system, switch the input power OFF, then a few minutes later ON.
The initial start for the system will take place.
The power supply module must be changed if the system is not booted and the LED remains OFF.
*3: Permissible instantaneous power off time
(1) For AC input power supply
An instantaneous power failure lasting less than 20ms will cause AC down to be detected, but
operation will continue.
An instantaneous power failure lasting in excess of 20ms may cause the operation to continue or initial start to
take place depending on the power supply load.
Further, when the AC supply of the AC input module is the same as that of the power supply module, it
prevents the sensor connected to the AC input module, which is ON at power-off, from turning OFF by
switching off the power supply.
However, if only the AC input module is connected to the AC line, which is connected to the power supply,
detection of the AC down for the power supply module may be delayed by the capacitor in the AC input
module. Thus, connect a load of approx. 30mA per AC input module to the AC line.
(2) For DC input power supply
An instantaneous power failure lasting less than 10ms* will cause 24VDC down to be detected, but operation
will continue.
An instantaneous power failure lasting in excess of 10ms* may cause the operation to continue or
initial start to take place depending on the power supply load. * : This is for a 24VDC input. This is 10ms or less
for less than 24VDC.
*4: Inrush current
When power is switched on again immediately (within 5 seconds) after power-off, an inrush current of more than the
specified value (2ms or less) may flow. Reapply power 5 seconds after power-off.
When selecting a fuse and breaker in the external circuit, take account of the blow out, detection characteristics and
above matters.
*5: Operation indication
During the operation, do not allow the input voltage to change from 200VAC level (170 to 264VAC) to 100VAC level
(85 to 132VAC).
(If changed, the POWER LED of the module turns off and the system operation stops.)
35 IB-1501452-C