ABB DP820 Pulse Counter Balanced Inputs For Connection
DP820 is an two-channel pulse counting module for incremental pulse transmitters up to 1.5 MHz. Each channel contains counters and registers for position/length and speed/frequency measurement. Each channel provides three balanced inputs for connection of a pulse transmitter, one digital input and one digital output. Pulse transmitters with RS422, +5 V, +12 V, +24 V and 13 mA interfaces can be connected to DP820.
Use DP820 with Module Termination Units TU810V1, TU812V1, TU814V1, TU830V1, TU833.
| Article number |
3BSE013228R1 |
| Type |
Pulse counter |
| Signal specification |
24 V d.c. (12 - 32 V d.c.) |
| Number of channels |
2 |
| HART |
No |
| SOE |
No |
| Redundancy |
No |
| High integrity |
No |
| Intrinsic safety |
No |
| Mechanics |
S800 |
| Input impedance |
2.5 kΩ (DI-input) |
| Isolation |
Individually isolated, channel-to-channel and to circuit common |
| Error |
Max. frequency measurement error Relative error Absolute error (Temperature drift included): [320/(MEASTIMEx in ms)] ppm [(320/(MEASTIMEx in ms) +100] ppm |
| Current limiting |
Sensor power can be current limited by the MTU |
| Maximum field cable length |
200 meters (218 yards) |
| Rated insulation voltage |
50 V |
| Dielectric test voltage |
500 V a.c. |
| Power dissipation |
2.5 W |
| Current consumption +5 V Modulebus |
120 mA |
| Current consumption +24 V Modulebus |
0 |
| Current consumption +24 V external |
0 |
Features and benefits
- Two channels
- Interface for RS422, 5 V, 12 V, 24 V and 13 mA transducer signal levels
- Simultaneous pulse count and frequency measurement
- Pulse count (length/position) by accumulation in a bidirectional 29 bit counter
- Frequency (speed) measurement 0.25 Hz - 1.5 MHz
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