95
Installation
Epsilon Only
If the low DC bus fault is disabled with PowerTools software on the Advanced tab,
resetting the drive is not necessary
Do not move the APS jumper with the main AC power applied to the drive. Wait at least
6 minutes after the main AC power has been removed from the L1 and L2 terminals.
Do not wire AC line power into the APS input. Doing so will damage the drive.
As shown in Figure 64, enabling APS power is done by sliding open the access panel on the
side of the drive. Then move the jumper into the APS position using needle nose pliers.
Use static control procedures when handling the jumper inside the drive case.
The APS input is isolated from all other circuits on the Epsilon drive including the DC bus,
logic and I/O. This permits you to use one common 24 VDC power supply for multiple drives
without concern for ground loops and noise coupling between drives. The APS connection
will generate some high frequency ripple (.25 Amps at 80 khz) on the APS power lines. This
may disturb sensitive equipment that shares the same power supply.
APS Input Specification
Voltage Range Current Inrush Current
18-30 VDC
0.5 A maximum
0.7 A peak
( 0.4 A maximum
0.6 A peak if external
encoder is not used )
80 A for 1 ms if not limited by power
supply
Drive Logic with Motor Encoder Only Add for Master Encoder Other Dependencies
APS Applied
Vo l t a g e
18 24 28 18 24-28
Add 10% per axis for fewer
than 4 axis on same A.P.S.
power supply.
Current Draw per
drive
(mA RMS)
550 400 360 110 75
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