Kikusui PFX2500 Series, Operation Manual

Page: 67 / 144

PFX2512
67
Overview of External Control
4
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External monitoring of the operating status
Status outputs for monitoring the operating status using external contact are available. The
outputs are open collector outputs of photocouplers; they are isolated from the internal circuits of
the PFX2512.
The photocoupler isolation circuit of the status output has a 80 Vdc withstand voltage.
Alarm input using an external contact (ALM IN)
The PFX2512 output can be shut off through external contact.
To apply an alarm signal, short the contact switch for at least 0.5 s.
Remove the first 10 mm
of the wire’s insulation,
and then insert the wire
here.
Correct Incorrect Incorrect
The wire itself is
in contact with the
chassis. Wire scraps are
in contact with the
chassis.
AWG 24
STRIP-GAUGE
10 mm
Insert the wire while
you press this part
down with a flat-blade
screwdriver.
REST status
1
2
3
4 5 6 7
8
9 10
END status
Alarm status
Status common
External alarm input
External alarm common
Not used
CHG status
DISCHG status
Status common
Pin no. Signal Description Circuit
10 External alarm common A common for external alarm.
9 External alarm input
Apply a low level signal to abort test execution.
1
This is pulled up to +5 V by 5.1 kΩ.
1 Shorting this pin with the external alarm common causes the PFX2512 to enter external alarm mode and the
test to be aborted.
8 Status common
A common for the status.
2
2 Status common pins 4 and 8 are at the same electric potential.
7 Alarm status
This is set to low level when an alarm is activated.
Open collector output
6 END status
This is set to low level when the test ends.
Open collector output
5 REST status
This is set to low level when in rest mode.
Open collector output
4 Status common
A common for the status.
2
3 DISCHG status
This is set to low level during discharge.
Open collector output
2 CHG status
This is set to low level during charge.
Open collector output
1 Not used Do not connect anything to this pin.
5.1 k
Ω
+5 V
9
10
8
6
5
7
2
3
1
NC
4
CAUTION
The external alarm input and external alarm common are at the same electric potential as the
internal circuit. Be sure to connect a circuit isolated from other electric potentials, such as a contact
switch or photocoupler output. Improper connection can destroy the internal circuit.