1756-PLS

Specifications

Input Signal

Resolver: 2Vrms Ref

Isolation

250 V continuous between

Output Signal

Digital Outputs: 10-31V DC

Accuracy

±0.0976% of full scale

Angular resolution per bit

0.088 °

Compatible resolver

Allen-Bradley resolver 846-SJxxxx-R3-x (x = customer options)

Conducted RF immunity

10V rms with 1 kHz sine wave 80% AM from 150 kHz...80 MHz on shielded signal ports

Current draw

1mA @ 5.1V, 125mA @ 24V

Current limit

<4 A

Current per group, max

4A @ 30°C (86 °F)

Current per module, max

8A @ 30°C (86 °F)

Current per point, max

1A @ 30°C (86 °F)

Digital count

0...4095 (decimal)

Digital inputs configurable

1

Digital outputs configurable

0

Digital resolution

12 bit

EFT/B immunity

±4kV @ 5kHz on unshielded I/O and power ports, ±2kV @ 5kHz on shielded resolver ports

Emissions

IEC 61000-6-4

Enclosure type

None (open-style)

ESD immunity

6 kV contact discharges, 8 kV air discharges

Input delay time

OFF to ON: <15 µs @ 30 °C (86 °F), <150 µs @ 60 °C (140 °F), ON to OFF: <30 µs @ 30 °C (86 °F), <200 µs @ 60 °C (140 °F)

Input impedance, max

3.3 kΩ @ 24V DC

Isolation voltage

250V (continuous), basic insulation type, I/O-to-backplane, I/O group-to-group, resolver-to-backplane, and resolver-to-I/O

Load current per point, min

40 mA

Module configuration

Left section: two groups of four outputs and four inputs each, Center section: resolver interface and I/O control, Right section: two groups of four outputs and four inputs each

Nonoperating temperature

-40 °C

North American temperature code

T4

Off-state current, max

1.5 mA

Off-state leakage current per point, max

300mA @ 60°C (140 °F)

Off-state leakage current per point, nom

<10 µA @ 60 °C (140 °F)

Off-state voltage, max

5V DC

ON-state current

3 mA

ON-state voltage, max

31.2V DC @ 31.2V DC

On-state voltage, min

10V DC @ 10V DC

On-state voltage, nom

10.8...26.4V DC @ 10.8...26.4V DC

Operating temperature

0 to 60 °C

Operating voltage

10.8...31.2V DC @ 10...31.2V DC

Output delay time

Off to On: <15 µs @ 60 °C (140 °F), ON to OFF: <25 µs @ 60 °C (140 °F)

Output power dissipation

3.2 W @ 60 °C (140 °F)

Outputs

16 (2 groups of 4 per I/O section)

Output switching time

Switching 1A @ 24V DC

Output voltage drop, max

0.55V DC

Power dissipation, max

25.7 W @ 30 °C (86 °F), 21.3 W @ 60 °C (140 °F), 2.8 W @ 60 °C (140 °F), 6 W @ 30 °C (86 °F), 3.8 W @ 60 °C (140 °F)

Power dissipation, nom

22.62 W @ 30 °C (86 °F), 18.22 W @ 60 °C (140 °F), 1.86 W @ 60 °C (140 °F), 5.4 W @ 30 °C (86 °F), 3.2 W @ 60 °C (140 °F)

Radiated RF immunity

10 V/m with 1 kHz sine-wave 80% AM from 80...2000 MHz, 10 V/m with 200 Hz 50% Pulse 100% AM @ 900 MHz, 10 V/m with 200 Hz 50% Pulse 100% AM @ 1890 MHz, 3 V/m with 1 kHz sine-wave 80% AM from 2000...2700 MHz

Redundancy

0

Reference frequency

5 kHz ±20%

Reference voltage

2V rms ±20%

Relative humidity

5...95% noncondensing

Repeatability

±0.0488% of full scale

Resolver interface

2V rms, reference output (differential pair), 2V rms, sine and cosine inputs (two differential pairs)

Resolver location

Center section

Reverse polarity protection

Yes, Yes, current limited. (If wired incorrectly, outputs can be permanently disabled.)

RTB keying

User-defined mechanical

Shock

Operating: 30 G, Non operating: 50 G

Short circuit protection

Electronic (No indication of fault. Remove load and toggle on/off to restore.)

Short-circuit protection, outputs available

0

Slot thermal dissipation

10.93 BTU/hr @ 60 °C (140 °F)

Slot width

3

Suitable for safety functions

0

Surge current per point

2 A for 10 ms every 1 s @ 60 °C (140 °F)

Surge transient immunity

±1 kV line-line (DM) and ±2 kV line-earth (CM) on unshielded I/O and power ports, ±2 kV line-earth (CM) on shielded resolver ports

Surrounding air temperature, max

60 °C

Thermal dissipation, max

87.74 BTU/hr @ 30 °C (86 °F), 72.72 BTU/hr @ 60 °C (140 °F), 9.56 BTU/h, 21.48 BTU/hr @ 30 °C (86 °F), 11.93 BTU/hr @ 60 °C (140 °F)

Thermal dissipation, nom

77.23 BTU/hr @ 30 °C (86 °F), 62.2 BTU/hr @ 60 °C (140 °F), 6.35 BTU/h, 18.43 BTU/hr @ 30 °C (86 °F), 10.93 BTU/hr @ 60 °C (140 °F)

Total backplane power

8.1 W

Tracking rate, max

±1800 RPM

Type of electric connection

Screw connection

Vibration

2 G @ 10...500 Hz

Voltage category

12/24V DC @ 12/24V DC

Voltage type of supply voltage

DC

Wire category

2 on signal ports, 1 on power ports

Bulletin

1756

Series

B

Lifecycle Status

Discontinued