MTS 793 Controller Hardware
FlexTest GT Controller Connections
118
J25 Hydraulic Power Unit Connection
Connector
J25 HPS
on the Model 493.73 HPU transition board controls
the hydraulic power unit (HPU).
•
The module produces 24 V logic signals to control the HPU.
•
The Model 493.07 HPU Converter Box allows any MTS HPU to be
connected to the chassis with the following exceptions:
–
506.52-.92 HPUs (24 volt, PLC compatible)
–
All Series 505 HPUs
The converter box is used with other configurations, see
“Hydraulic Configurations”
on page 221 for more information.
Control voltages for hydraulic power units vary between models.
The HPU interface between the Model 493.73 HPU transition board and
an HPU is 24 volt logic signals. Connecting J25 to a non-compliant HPU
can damage the module.
DO NOT connect 24 V DC relay circuitry or 115 V AC circuitry to the HPU
connector J25.
Service LED
The Service LED turns on when electrical power is applied and it turns
off when the chassis makes contact with the personal computer and
processor has successfully booted.
Cable specification
J25 HPS
is a 15 pin type D male connector.
•
15-contact type D female EMI connector.
•
Cable—24 AWG, 10 conductor with overall foil shield, (Carol
C0745 or equivalent) with drain wire connected to metallized
plastic backshell to the chassis.
Jumper plug required
If connector
J25 HPS
is not used, you must install a jumper plug to
maintain the integrity of the interlocks. Use jumper plug PN 039-713-
301 or jumper pins: 1–7, 2–3–5, 6–9, 8–10–11–12.
CAUTION
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