Basler BE1-50/51B-217, Instruction Manual, Page: 44 / 49

BE1-50/51B-217 Testing
5-4
Step 4. Slowly increase current to terminals 8 and 9. INST contacts should close at an input current of
7.815 to 8.185 amperes.
Step 5. Decrease input current until INST output contacts open.
Time Dial Test
Perform preliminary setup:
Connect test setup as shown in Figure 5-1.
Insure that SW8 switches are set correctly: SW8-1 for operating frequency, SW8-2 to OFF (no
instantaneous delay), SW8-3 to OFF (no instantaneous delay), and SW8-4 to OFF (selects
instantaneous reset).
Set TIME DIAL to 4.0.
Set CURVE to S
Set TIME PICKUP to 1.0.
Set INST PICKUP to 90.
Step 1. Prepare to apply 1.5 amperes input current to terminals 8 and 9 and record the elapsed time
from when current is applied until TIME output contacts close.
Step 2. Apply the current (step from 0 to 1.5 amperes) and record the elapsed time. Elapsed time
should be 72.49 to 99.38 seconds. (This tolerance is greater than ±2 % because it is the
accumulation of both pickup and timing tolerances.)
Step 3. Remove input current.
Target Test
Perform preliminary setup:
Connect test setup as shown in Figure 5-2.
Insure that SW8 switches are set correctly: SW8-1 for operating frequency, SW8-2 to OFF (no
instantaneous delay), SW8-3 to OFF (no instantaneous delay), and SW8-4 to OFF (selects
instantaneous reset).
Set TIME DIAL to 4.5.
Set CURVE to S
Set TIME PICKUP to 1.0.
Set INST PICKUP to 01.
Step 1. Set target current source to 1.0 ampere, ac.
Step 2. Apply 5 amperes input current to terminals 8 and 9. Check that both TIME and INST targets
operate.
Step 3. Remove input current and reset targets.