Installation manual

Installation 21

Safety Information Product Overview Installation Diagnostics

Options and

Accessories

Specification

Figure 19: Epsilon EP216 AC Power Wiring Diagram

Operation on DC Input Supply

At this time, the EP drive is NOT UL listed for operation on a DC input supply,

The Epsilon EP202, EP204 and EP206 drive can operate on DC input as low as 20 Vdc, recommended minimum is

24 Vdc. The Epsilon EP209 and EP216 drive’s minimum is 140 Vdc. It can also operate from a common DC link with

voltage to 373 Vdc, the voltage resulting from 264 Vac applied to a rectifier, with regen to 400 Vdc intermittently.

For DC input supply less than 24 Vdc, the DC input should be connected to the B+ and B- terminals at J8 to avoid

losses in the rectifier and inrush limiter. At such low voltages the bus caps do not need inrush protection. For DC

supply greater than 24 Vdc, the supply should be connected to L1 and L2 terminals on J1. Polarity does not matter.

The rectifier blocks reverse current so regen energy will not come back to the supply. DC supply greater than 24 Vdc

may be applied to the B+ and B- terminals of J8, but the supply must provide soft-start or inrush current limiting and

must be able to handle any anticipated regen energy.

Both supply conductors must be fused except one that is grounded. The fuse must be rated for at least the voltage

applied. The current rating of the fuse should match the rated output current of the drive. A slow-blow fuse should

be used if high peak loads are expected.

Please contact Technical Support at Control Techniques Americas before connecting any EP drives with a

common DC link.

MOTOR

Terminals are suitable for one 16 AWG to 10 AWG

or ISO 1,5 to ISO 6 stranded conductors.

* Note: If L2 or L3 is 120Vac Neutral it should not be fused.

Redundant PE connection

B+

B-

50/60 Hz

90-264 Vac

Tighten screws

to 5 in-lb.

L2*

L3*