Emerson ControlWave GFC IStran Instruction Manual page 14

ControlWave GFC IS Communication Interface Manual (CI-CW-GFC-ISTRAN)
2-4
Table 2-5 provides the characteristics of the non-hazardous interface.
Table 2-5. Non-Hazardous Interface Characteristics
Description
NPIN Voltage (When
HPOUT is not used)
NPIN Voltage (When
HPOUT is used)
NPIN Supply Current
(Switched Mode,
Transmitters Off)
NPIN Supply Current (All
TX Outputs High, 3
KWLoads)
NPOUT Leakage
NPIN to NPOUT On-
Resistance (NPIN ³ 12 V)
NRX3 to NPOUT On
NPOUT Load Current
NTX Output High Level
NTX Output Low Level
NJP1 Jumper Operation
Function and Electrical Characteristics
Specification
Minimum: 5.4 VDC
Maximum: 16 VDC
Minimum: 8 VDC
Maximum: 16 VDC
< 500 uA at 12 VDC, 77 F (25
Typical:
C)
Maximum: 750 uA
Maximum: 37 mA
Typical: < 1 uA
Typical: < 0.3 ohm
Maximum: 0.5 ohm
Typical: < 10 uS
Maximum: 1.8 A Continuous
Maximum: 3.0 A Intermittent (Max 60
Seconds, 50% duty)
Typical: 7.4 VDC into 3 Kohm Load
Minimum: 5.0 VDC
Maximum: 9.5 VDC
Typical: -4.9 VDC into 3 Kohm Load
Minimum: -9.5 VDC
Maximum: -3.0 VDC
If you didn't install a jumper, or if you installed
a jumper between pins 1 and 2 (SW), the non-
hazardous interface operates in switched
mode. If you install a jumper between pins 2
and 3 (UNSW), the non-hazardous interface
operates in unswitched mode. (Figure 2-2
shows the jumper in switched mode.)
Maximum: 100 uA
Issued Nov-09