Rockwell Automation 1336T FORCE Series B - Manual (Page 31)

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Chapter 2
Installation/Wiring
2–11
Drive Output Disconnection Any disconnecting means wired to Drive output terminals M1, M2 and M3
must be capable of disabling the Drive if opened during Drive operation.
If opened during Drive operation, the Drive will fault. It is recommended
that the Drive Enable be removed before the contactor is opened. When
the Drive Enable is removed, the Drive will stop modulating.
Input Power Conditioning Typically the 1336 FORCE is suitable for direct connection to a
three–phase, AC power line. There are however certain power line
conditions which may introduce the possibility of drive input power
component malfunction. To reduce the possibility of these malfunctions, a
line reactor or isolation type transformer may be required.
The basic rules for determining if a line reactor or isolation type
transformer is required are as follows:
1. If the AC line supplying the drive has power factor correction capacitors
connected, an AC line reactor or isolation type transformer must be
connected between the capacitor bank and the input to the drive.
2. If the AC line frequently experiences transient power interruptions or
significant voltage spikes, an AC line reactor or isolation type
transformer may be required.
Refer to “Unbalanced Distribution Systems”.
Input Fusing
ATTENTION: The 1336 FORCE does not provide input power
short circuit fusing. Specifications for the recommended fuse
size and type to provide drive input power protection against
short circuits are provided in Table 2.A. Branch circuit breakers
or disconnect switches cannot provide this level of protection for
drive components.