S600 Instruction Manual
Table 4-7. DIGOUT Pin Connections for SKT-C
Pin Function
37 DIGOUT-CH3
36 DIGOUT-CH4
35 RETURN
CH1-4
34 DIGOUT-CH5
33 DIGOUT-CH6
32 DIGOUT-CH7
31 DIGOUT-CH8
30 RETURN
CH5-8
29 DIGOUT-CH9
28 DIGOUT-CH10
27 DIGOUT-CH11
26 DIGOUT-CH12
25 RETURN
CH9-12
4.1.5 Turbine Pulse Inputs
With the optional mezzanine card for pulse inputs (P148) installed, the
P144 I/O board supports four pulse inputs either independently or as
two pairs (“dual pulse mode”). Generally, the pulse inputs perform
dual pulse measurement, such as in turbine applications. In dual pulse
mode, you can enable level A or B pulse checking.
Each input has an input range of 1 to 10 KHz. Each channel has live
integrity checking. If cabling faults develop or if the pre-amp power
fails, the software activates a configurable circuit fail alarm.
The electrical connection for these inputs depends on which DPR
mezzanine card is fitted to the P144 I/O module. The dual mezzanine
card accepts pulse inputs from 3.5 Volts dc to 24 Volts dc, when wired
as show in Figures 4-13 and 4-14. It cannot accept NAMUR or current
mode preamps without external devices.
The P148 mezzanine card can interface to a variety of pre-amps,
including Spectra-Tek F106, Spectra-Tek IS106, Instromet MK15,
Faure Herman FH71 2-wire, Faure Herman FH71 3-wire, ITT Barton
818U, and Daniel 1838 Preamp.
Table 4-8 shows the dual pulse input pin connections.
Figure 4-13. Pulse Input Schematic (with EU 12 V P148 Mezzanine Card)
Revised Jan-07
I/O
4-9
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