BE1-951
Testing and Maintenance
13-21
Table 13-14. 50TQ Pickup Commands
Sensing Type
Command
Comments
1 A
S0-50TQ=0.1,0,N
Sets 50TQ pickup at 0.1 A,TD=0, non-directional
S0-50TQ=1.0,0,N
Sets 50TQ pickup at 1.0 A,TD=0, non-directional
S0-50TQ=5.0,0,N
Sets 50TQ pickup at 5.0 A,TD=0, non-directional
5 A
S0-50TQ=0.5,0,N
Sets 50TQ pickup at 0.5 A,TD=0, non-directional
S0-50TQ=5.0,0,N
Sets 50TQ pickup at 5.0 A,TD=0, non-directional
S0-50TQ=10.0,0,N
Sets 50TQ pickup at 10.0 A,TD=0, non-directional
For a single-phase input test, I
2
= Ia÷3. Therefore, the relay should pick up at a value of three times the
setting value when applying only a single-phase input. For example, to determine the pickup current value
required for an a 1A relay with a pickup setting of 0.1, it would require 0.1 times 3 or 0.3 amperes of input
current.
Step 4 Slowly ramp up A-phase current until OUT1 closes. Verify that pickup occurred within the specified
accuracy of the relay (5 A sensing: +3 percent or +75 mA, 1 A sensing: +3 percent or +15 mA).
Table 13-15 provides the upper and lower limits for the specified tests.
Table 13-15. 50/150TQ Pickup Values
Sensing
Type
Pickup Setting
Lower
Limit
Upper
Limit
1 A
S0-50TQ=0.1,0
0.225 A
0.375 A
S0-50TQ=1.0,0
2.91 A
3.09 A
S0-50TQ=5.0,0
14.55 A
15.45 A
5 A
S0-50TQ=0.5,0
1.425 A
1.575 A
S0-50TQ=5.0,0
14.55 A
15.45 A
S0-50TQ=10.0,0
29.1 A
30.1 A
Step 5 After pickup occurs, slowly ramp the current down until OUT1 opens. Verify that dropout occurred
as specified (95 percent, +2 percent). Verify 50TQ target on the HMI.
Step 6 Repeat Steps 3, 4, and 5, applying all Table 13-15 values that apply to your sensing input type.
Step 7 (Optional) Repeat Steps 3 through 6 for phase B (terminals D3 and D4) and phase C (terminals D5
and D6).
Step 8 (Optional) Repeat Steps 1 through 7 for the 150TQ elements. Use Table 13-16 as a reference when
substituting the commands used in Step 1.
Table 13-16. 150TQ Pickup Commands
Replace These Commands
With These Commands
SL-50TQ=1,0
SL-150TQ=1,0
SL-VO1=50TQT
SL-VO1=150TQT
SG-TRIG=50TQT,50TQPU,0
SG-TRIG=150TQT,150TQPU,0
Step 9 (Optional) Repeat Steps 1 through 8 for the 50TQ and 150TQ elements in setting groups 1, 2, and
3.
