30
As shown in above figures, P3 sorting mode is suitable for sorting multi-bin,
where only one of P1, P2, P3 and NG signals is valid. When one of P1, P2, P3
signals is valid, sub parameter must be qualified; and when NG signal is
qualified, probably main parameter or sub parameter is not qualified.
2.3.5.2 Handler interface
Refer to §2.4 Parameter setting method to set main and sub parameters and
nominal value. Then insert the DUT, and the sorting result can be obtained
through the following methods:
z
Observe sorting instruction information on panel to tell whether the
component is qualified or not. There are four indicator lamps, which have
corresponding results:
In the state of P3: P1: first-class product
P2: second-class product
P3: third-class product
NG: not qualified
In the state of P1: PASS: qualified
HI: main parameter is more than high limit
LO: main parameter is less than low limit
D/QNG: sub parameter is not qualified
z
If alarm is on (refer to §2.3.1 Alarm), the beeper in the instrument makes
alarm when P1 (PASS) signal is output.
z
Handler interface: the precondition is that the instrument must be set to
single mode (refer to §2.3.2). Through this interface, TH2810B can
synchronously work with one component’s auto measurement system. An
outer “START” signal is received through the interface to start measuring,
and four sorting result signals and two synchronous controlling signals are
sent out to control outer machine’s movement structure.
Handler interface is on the rear panel, and its signals are as follows (definitions
in P1 sorting state in brackets):
Note:
Because light coupling output signal is
opto-isolated circuit, resistance must be pulled
up so that signal can be output. Current of 25
mA can be absorbed when the signal is low
asserted.
When one sorting result signal is valid,
corresponding light coupling output terminal is
connected. For example: if P1 is valid, light
coupling O202 is connected, and P1 is low
asserted.
Value of R203 (default 330
Ω
) should drive
O207 into saturation, with the input current of
Figure 2-9 Pin of Handler Interface
12mA. If power is 24V, R203 = power/12mA =
24V/12mA = 2 k
Ω
. User can change R203 on main PCB, or serially connect a
resistance of 2 k
Ω
between outer switch and Pin 7 START. And if power is 12V,
NG(D/QNG)
P3(LO)
P2(HI)
P1(PASS)
START
COM
O201
O202
O203
O204
O207
R203
1
2
3
4
9
7
/330
EOC
WAIT
O205
O206
6
5
