SETUP
1
3-14 powermax1250 Operator Manual
Changing XFER (start machine motion) from dry contact closure to
voltage signal
24 VDC (chassis ground reference) at 100ma max is available at J19 on the power board to
drive an isolated/floating device such as a 24 VDC relay coil (240 ohms or greater) or a typical
industrial input isolation module (which has an opto-coupler built-in). Shown below are typical
connections for a high side drive arrangement.
Driving a Relay Coil
Notes:
• Customer-supplied
24 VDC relay coil
> 240 ohms.
• Must use suppression diode
(1A, 100V) such as IN4002
through IN4004 type across
coil.
• Pins 5 and 6 are used only
on systems that include the
PowermaxEdge cable with
voltage divider.
Move black (BLK) wire to
ground (GND) and add
jumper wire as shown.
Start
Signal
Shield
13
12
14
3
4
6
5
J19
GND
24VDC
BLK
YEL
RED
WHT
V-div +
V-div -
XFER START
BLK
J16 J15
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