42 system board – MTS FlexTest Models 200 User Manual
Page 74

MTS FlexTest® Models 40/60/100/200 Controller Hardware
Model 494.42 Single-Station System Board
FlexTest Controller Configurations
74
J25 Hydraulic Power Unit Connections for the Model 494.42 System I/O Board
Connector J25 HPU provides 24-volt logic signals that control the hydraulic
power unit (HPU). The connector may be connected directly to MTS Series 505
HPUs and similar HPUs that use low-current, 24-volt input controls.
Note
Other MTS HPUs require the Model 493.07 HPU Converter Box to
convert the low-current HPU output signal to a signal that can drive the
HPU relay.
ON = Normal
ON = Normal
ON = HPU ON
Power
100-240 VAC
50-60 Hz, 1-2 A
DA Output
J24
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
LAN 2
LAN 1
DEBUG
MOT
OROLA
10/100 BASE T 10/100 BASE T
SCSI
BUSY
PIB
BUSY
PCI MEZZANINE CARD
PCI MEZZANINE CARD
J54
Dig In
J55 Dig Out
J43 INTLK
J56 UPS
J49
Aux Pwr
J23 Estop/Run
J29 Load Frame
J25 HPU
J28 HSM
Controller 24 Vdc
+24 V DC (from HPU)
HPU
ON
Sense
24 V DC (from HPU)
Start
Lo
High
HPU Over Temp
Open = Interlock Active
494.42 System Board
9
10
11
12
1
2
3
4
5
6
15
7
8
J25
HPU
HPU Low Level
Open = Interlock Active
Start
SSR
Low
SSR
High
SSR
24 V DC (from HPU)
HPU ON
Series 505 HPU or Equivalent
J25
HPU
HPU E-Stop Out 1
* MTS Model 505 Pumps and older do not use the
HPU E-Stop 2 signal.
HPU E-Stop Out 2*
Open = HPU E Stop