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User’s Manual
PMX_MULTI
External Control
External monitoring of the operating status
The J1 connector has status outputs that can be used to externally monitor the operation status of the
product. The following six items make up the status outputs.
The outputs are open collector outputs of photocouplers; they are isolated from the internal circuits of the
product.
The status common is floating (that is, it has an isolation voltage of less than or equal to 70 V).
The maximum ratings of the signal terminals are as follows:
Maximum voltage: 30 V. Maximum current (sink): 8 mA.
Pin no.
Signal name
Description
Circuit
1
OUTPUT ON
STATUS (CH1)
This is set to LOW level when the CH1 output is turned on.
Photocoupler open collector output.
2
OUTPUT ON
STATUS (CH2)
This is set to LOW level when the CH2 output is turned on.
Photocoupler open collector output.
3
OUTPUT ON
STATUS (CH3)
This is set to LOW level when the CH3 output is turned on.
Photocoupler open collector output.
4
OUTPUT ON
STATUS (CH4)
This is set to LOW level when the CH4 output is turned on.
Photocoupler open collector output.
5
POWER ON
STATUS
This is set to LOW level when the POWER switch is turned
on (POWER ON STATUS).
Photocoupler open collector output.
6
ALARM STATUS This is set to LOW level when a protection function (OVP,
OCP, OHP, WATCHDOG) is activated or when an alarm
signal (ALARM IN) is received.
7
STATUS COM
Status signal common for pins 1 to 6.
Photocoupler emitter output.
1
5
4
3
2
7
6
