TEL TAVRIDA ELECTRIC VCB15 LD, User Manual

Page: 53 / 93

54
Operation description Required tool Approximate timing
Do not remove trip command and apply
close command to the CM then check
the following:
- The
“
Power“ LED must light
continuously;
- The
“
Ready“ LED must light
continuously;
- The
“
Malfunction“ LED must not light
up;
- The
“
Ready“ relay contact must not
change its state;
- The
“
Malfunction“ relay contact must
not change its state;
- The “ISM main contact position”
relay contact must not change its state;
- ISM main contacts must not change
their state (ISM shall remain open).
Visual check, no tool is required 1 minute
Remove close and trip commands to the
CM then check the following:
- The
“
Power“ LED must light
continuously;
- The
“
Ready“ LED must light
continuously;
- The
“
Malfunction“ LED must not light
up;
- The
“
Ready“ relay contact must not
change its state;
- The
“
Malfunction“ relay contact must
not change its state;
- The “ISM main contact position” relay
must change its state;
- ISM main contacts must change their
state (ISM shall remain open).
Visual check, no tool is required 1 minute
Apply and keep close command and
then apply trip command to the CM
then check the following:
- The
“
Power“ LED must light
continuously;
- The
“
Ready“ LED must go out after
the trip of the ISM and then light up
continuously within 10 s.;
- The
“
Malfunction“ LED must not light
up;
- The
“
Ready“ relay contact must chan-
ge its state after the trip of the ISM and
then change its state again within 10 s.;
- The
“
Malfunction“ relay contact must
not change its state;
- The “ISM main contact position”
relay contact must change its state each
time when ISM is closed and open;
- ISM main contacts must change their
state each time when ISM is closed and
open.
Visual check, no tool is required 1 minute