User manual

21
Publication 1738-SG001B-EN-P
ArmorPoint I/O
Number of SSI Channels
Keyswitch Position
PointBus Current (mA)
Power Dissipation, Max.
Isolation Voltage
External DC Power Supply Voltage, Nom.
Encoder Type
SSI Data Rate
SSI Bits Per Word
SSI Word Length
SSI Word Delay Time
SSI Features
SSI Cable Type
SSI Cable Length
SSI Sensor Power (At V+/- Terminals)
SSI Clock Drive Current, Max. (Out of C+/- Terminals)
Input I1 Category/Type
Voltage, On-State Input, Min.
Voltage, On-State Input, Max.
Current, On-State Input, Min.
Current, On-State Input, Nom.
Current, On-State Input, Max.
Voltage, Off-State Input, Min.
Voltage, Off-State Input, Max.
Current, Off-State Input, Max.
Input Impedance, Nom.
Input Impedance, Max.
Input Filter Time, Nom.
Field Power Bus Supply Voltage, Min.
Field Power Bus Supply Voltage, Nom.
Field Power Bus Supply Voltage, Max.
11773388--SSSSIIMM2233 MMoodduullee SSppeecciiffiiccaattiioonnss
11773388--SSSSIIMM2233
1
2
110
0.94 W
Tested to 1250V ac for 60 s between each of these isolated areas:
Logic side and field power
Logic side and shield
Shield and field power
24V dc
Any absolute encoder supporting standard SSI protocol including linear, rotary, and optical distance measuring devices
125 kHz, 250 kHz, 500 kHz, 1 MHz, 2 MHz (software selectable)
2…31 (software selectable)
4 bytes (32 bits)
16 μs…64 ms (software selectable)
9
Gray or binary code capable with gray to binary conversion, increasing or decreasing SSI count indication, 2 SSI word comparator values, SSI
word latching with I1 input
UL CM/AWM 2464/CSA Type CMG FT4 or similar cable utilizing shielded twisted pairs for D+/- and C+/- connections. See sensor
manufacturer for actual cable required for the SSI sensor under use. I1 input can be wired separate from SSI cable.7
Depends on desired SSI data rate:
125 kHz…1050 ft(320m)
250 kHz…525 ft(160m)
500 kHz…195 ft(60m)
1 MHz…65 ft(20m)
2 MHz…25 ft(8m)
10…28.8V dc common with field power voltage, 0.75A dc maximum with short circuit protection
750 mA
Similar to IEC Type 3, sourcing
0V dc
Field Power Supply Voltage minus 10V
2 mA
4 mA (Field Power Supply Voltage = 24V dc)
5 mA
Field Power Supply Voltage minus 5V
Equal to Field Power Supply Voltage
—
3.6 kΩ
4.7 kΩ
0.5 ms
10V dc
24V dc
28.8V dc
9Time between successive SSI words (Tp). Also called Dwell Time.
7 Use this conductor category information for planning conductor routing as described in publication 1770-4.1, “Industrial Automation Wiring and Grounding Guidelines.”