AMETEK CTS 3.0 - Manual (Page 163)

User Manual Compliance Test System 3.0
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19.4.5 Power-On Troubleshooting - Voltage Sense
1. Connect the DMM common to TP1.
2. Connect the other DMM lead to TP2. This is the phase A voltage sense output.
3. Apply a test voltage to the PACS input terminals TB4. Use Neutral and ph- A
4. The reading at TP2 should be 1/100 of the input voltage. For example, if 120 V rms is applied at
TB4, then there should be 1.20V rms at TP2.
PACS-3 ONLY
5. Connect the other DMM lead to TP3. This is the phase B voltage sense output
6. Apply a test voltage to the PACS input terminals TB4. Use Neutral and ph- B
7. The reading at TP3 should be 1/100 of the input voltage. For example, if 120 V rms is applied at
TB4, then there should be 1.20V rms at TP3.
8. Connect the other DMM lead to TP4. This is the phase C voltage sense output
9. Apply a test voltage to the PACS input terminals TB4. Use Neutral and ph- C
10. The reading at TP4 should be 1/100 of the input voltage. For example, if 120 V rms is applied at
TB4, then there should be 1.20V rms at TP4.
11. If any of these test points do not have the correct voltage on them, the board is malfunctioning
and it must be serviced.
19.4.6 Power-On Troubleshooting - Current Sense
1. Connect the DMM common to TP1.
2. Connect the other DMM lead to TP6. This is the phase A current sense output.
3. Apply a 4A test current to the PACS input terminals TB4. Use Neutral and ph- A.
4. The reading at TP6 should be 496mV/ Amp of input current. For example, with 4.0A rms
applied at TB4, then there should be 1.984V rms at TP6.
PACS-3 ONLY
5. Connect the other DMM lead to TP8. This is the phase B current sense output.
6. Apply a 4A test current to the PACS input terminals TB4. Use Neutral and ph- B.
7. The reading at TP8 should be 496mV/ Amp of input current. For example, with 4.0A rms
applied at TB4, then there should be 1.984V rms at TP8.
8. Connect the other DMM lead to TP10. This is the phase C current sense output.
9. Apply a 4A test current to the PACS input terminals TB4. Use Neutral and ph- C.
10. The reading at TP10 should be 496mV/ Amp of input current. For example, with 4.0A rms
applied at TB4, then there should be 1.984V rms at TP10.
11. If these sense voltages are not obtained then the board is malfunctioning and it must be
serviced.