S4If Replacement Procedure - Magnetek Impulse G+ series 4 Instruction Manual

S4IF Replacement Procedure

Do NOT touch any circuit components while AC main power is on or immediately after the
main AC power is disconnected from the unit. You must wait until the red "CHARGE" lamp is
extinguished. It may take as long as 10 minutes for the charge on the main DC bus capacitors
to drop to a safe level. Failure to adhere to this warning could result in serious injury.
NOTE: When handling boards always use electrostatic discharge protection. Keep the boards in
the ESD bag as long as you can. Do not lay the board on any surfaces without ESD
protection. When handling, always hold the board from the edges and do not touch the
components. Installation should be performed only by qualified personnel who are familiar
with this type of equipment and the hazards involved.
1. Prior to installation, record all modified parameters.
2. Set A01-05 = 7770 (this prepares all modified and user parameters for IF card removal).
3. Disconnect all electrical power to the drive.
4. Remove the drive's front cover.
5. Verify that the "CHARGE" indicator lamp inside the drive is OFF (may take up to 5 minutes).
6. Use a voltmeter to verify the voltage at the incoming power terminals (L1, L2, and L3) has been
disconnected.
7. Follow your local ESD procedures.
WA R N I N G
Figure 6-2: Location of Retaining Screws
IMPULSE®•G+ & VG+ Series 4 Instruction Manual – February 2017
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