GE MM300 Instruction Manual page 43

CHAPTER 2: INSTALLATION
NOTE:
NOTE
MM300 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL
Figure 2-27: Testing for dielectric strength - with IO_E module
VOLTAGE ADJUST HV ON
kV
DIELECTRIC STRENGTH TESTER
LINE FAULT
POWER FAULT RESET
BLACK RED
ON
Do not HI-POT test
HI-POT test at 1.32 kV AC for 1 second, or
1.12 kV AC for 1 minute (per UL 508)
*
Remove surge ground during test
Filter networks and transient protection clamps are used between VT input and the surge
ground terminal. This is intended to filter out high voltage transients, radio frequency
interference (RFI), and electromagnetic interference (EMI). The filter capacitors and
transient suppressors may be damaged by continuous high voltage. Disconnect the surge
ground terminal (E8) during testing of VT inputs. The CT inputs, control power, and output
relays do not require any special precautions. Low voltage inputs (less than 30 volts), RTDs,
and RS485 communication ports are not to be tested for dielectric strength under any
circumstance (see above).
Substitute the slot position of the Input/Output module (E, F, G, or H) wherever the tilde
symbol "~" appears in the diagram above.
ELECTRICAL INSTALLATION
* * * * *
+ – C + – R I SG
CPU module VT module (optional)
GE Multilin
MM300
Motor Management S stem
D1
CT1
D2
D3
CT2
D4
Power
D5
suppl
CT3
D6
D7
CT4
D8
~14
~13
~12
~11
COM
~10
~9
~8
~7
~6
~5
~4
~3
~2
~1
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