4.6. STARTUP
This section covers basic checks and procedures that should be used when
performing a startup with a M3645 line regen.
4.6.1. PRE-POWER CHECKS
Ensure that the voltage of the AC power system is the same as the regen
unit.
Ensure that all connections are tight and that all wiring is of the proper
size and rating for operation.
Verify continuity of all input fuses prior to applying power.
Check for exposed conductors that may lead to inadvertent contact.
Check for any debris, shavings, trimmings, etc. that may cause shorts or
obstruct ventilation on unit.
4.6.2. STARTUP PROCEDURE AND CHECKS
After completing Regen pre-checks and recommended checks for connected
equipment you may apply power to the system. The Power indicator on the
front panel should illuminate. The fan should start, then stop, within ten
seconds.
Enable the M3645 by placing 24VDC on the “Enable” input. (Table 3-6 or
Table 3-7 for 300A units)
The status contact should be closed after a 2 second delay, which is an
indication that unit is ready for operation.
Observe the current on the digital display, or with a current clamp for systems
without a digital display. If more than 5 amps are flowing with the attached
drive not operating, go to the troubleshooting instructions in Section 5.3.
Once the status output closes, the regen is ready to operate, and the drive
system can be run normally.
4.6.3. COOLING FAN
The cooling fan will not run all the time. The fan runs at startup, when the unit
is regenerating, or when the unit’s internal temperature is above a certain
level. If the cooling fan never runs, there may be damage to the fan and the
unit may need repair.
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