Allen-Bradley 23PFC, Руководство по обслуживанию оборудования

Страница: 113 / 150

Rockwell Automation Publication 23PFC-TG001A-EN-P - March 2018 113
Frame B Field Controller Part Replacement Procedures Chapter 4
• Use the following table to determine the proper tightening torque for
the bus bars connected to the SCR modules:
Bimetal Thermostats
Replacement Remove the Bimetal Thermostats
1. Read the General Safety Precautions on page 10 .
2. Remove power from the device (see page 79 ).
3. Remove the screws and washers that secure the plastic shields to the
bottom of the device and remove the shields.
4. Remove the bolts, washers, and wiring from the U phase AC input
power terminal and the D power terminal.
5. Remove the protective covers from the device (see page 80 ).
Device Output
Current (Amps) Rockwell Automation
Cat. No. Vendor Vendor Part Number Final Torque
245 SK-20P-S7F79 Semikron SKKT162/16E 5 N•m ±15% (44.25 lb•in ±15%)
IXYS MCC162-16io1 4.5…5.5 N•m (39.8…48.7 lb•in)
365 SK-20P-S7F41 Semikron SKKT273/16E 9 N•m ±15% (79.6 lb•in ±15%)
Vishay VSKT230-16PbF 4…6 N•m ±10% (35.4…53 lb•in ±10%)
IXYS MCC225-16io1 11…13 N•m (97.3…115 lb•in)
Infineon TT210N16KOF 12 N•m ±10% (106.2 lb•in ±10%)
570 SK-20P-S737F IXYS MCC312-16io1 11…13 N•m (97.3…115 lb•in)
Semikron SKKT330/16E 9 N•m ±15% (79.6 lb•in ±15%)
Infineon TT285N16KOF 12 N•m ±10% (106.2 lb•in ±10%)
3
3
U Phase
4
Bottom View
D Terminal
IMPORTANT Mark all connections and wires before removal to avoid incorrect
wiring during reassembly.