Datasensor BWS-T2 Series - Page 11

BWS-T2 Series Instructions manual
8
There are two ways to connect the Test 1 and Test 2 contacts:
a) CYCLE TEST procedure using 2 N.C. contacts.
1 2 3 4
TEST1 TEST2
Figure 2
When the Test 1 contact opens, the test procedure begins.
When the Test 2 contact opens and closes again, the test procedure ends.
This type of connection allows to detect short-circuits at the test cables.
b) CYCLE TEST procedure using 1 N.C. contact.
1 2 3 4
TEST
Figure 3
When the Test contact opens, the test procedure begins; when it closes,
the test procedure ends.