MAJORSINE Inverter Manual / M101.4
Page 15
Grounding:
Chassis to Earth Ground connection should be made per
customer installation specifications or prevailing safety
jurisdiction authority.
The inverter external safety ground plane is not switched by
operation in any mode. Typically - the chassis is mounted in a
rack or a conductor to ground plane is installed.
4. INSTALLATION
4-1 Delivery
Upon receipt of goods, check the condition of the package.
Should the package or unit be damaged, refuse receipt and/or
contact your shipper immediately to initiate your claim.
4-2 Installation Procedures
¾
Mount unit using the brackets and screws supplied in the
hardware kit.
¾
Please check that the input DC voltage supply meets the VDC
specification of the inverter, and verify the correct DC polarity
connections have been made to the inverter.
¾
Turn off the DC breaker before connecting the DC voltage to
the input terminal. The DC terminal strip will accommodate
ring terminals with wire sizes recommended in chart below.
NOTE:
Sparks will occur if the breaker is “on” when
connecting the input DC voltage. This is a normal condition
due to the charging current draw from the DC voltage charging
the internal capacitor of the inverter.
¾
Connect the DC input voltage cables to the ‘+’ and ‘-’ screw
terminal only, before engaging the front panel DC breaker.
The center screw is chassis ground and should only be used if
the AC bypass service (green safety wire) is not connected.
¾
Connect the bypass service supply. The green wire (safety)
conductor will ground the chassis. Additional ground
conductors should not be needed to avoid creating
undesirable ground loops. Reference local standards or the
AHL for your installation requirements.
