Описание

Easy operation and many setting options characterise the Signo 721 preset counter. It provides very high counting frequencies of up to 60 kilohertz and features a large 5-digit LCD display. It is backlit and easy to read. Totalizing counter
  • Very simple operation
  • Large, clearly readable LCD display
  • LCD reflective or backlit
  • Counting frequency up to 60 kHz
  • Prescaler 0.0001 - 9.9999
Product Familysigno 721
FunctionTotalizing counter
TechnologyElectronic
Digits5-digit
Display
  • 5-digit
  • 2-line
  • counting display/presets
  • leading zero suppression
  • decimal point (up to 4 places)
Preset
  • 1 preset
  • 2 presets
Digit Height [mm]
  • 1. Line 12.0 mm (0.5 in)
  • 2. Line 6.0 mm (0.3 in)
Display Variant
  • reflective LCD
  • transmissive negative LCD, digits backlit white or red on a black background
View Angle12:00
Relay1 or 1 relays
Voltage
  • 12-30 VDC
  • 24-240 VAC
Reset
  • manual reset
  • electrical reset
  • automatic reset
Signal Times0.01 s to 599.99 s or bistable, programmable, tolerance + 10 ms
Current Consumption [mA]
  • < 200 mA at 12-30 VDC reflective
  • < 250 mA at 12-30 VDC with backlight
  • <250 mA at 24 VAC
  • <50 mA at 115, 230 VAC
  • <80 mA at 100-240 VAC switching power supply
Power Consumption< 5 W?<8 W
Cable Cross-Section1...1.5 mm? (0.0015...0.0023 in?) with multicore cable end
Input Resistanceapprox. 10 kOhm
Pulse Length min.17 ms (30 Hz), 8 ?s (60 kHz)
Supply Voltage
  • 12-30 VDC
  • 24, 115, 230 VAC
  • 100-240 VAC
Count Frequency [Hz]
  • max. 60 kHz (TTL 20 kHz): Single-channel counting and directional input
  • max. 60 kHz (TTL 20 kHz): differential or totalizing operation
  • channel (A+B together)
  • max. 30 kHz (TTL 20 kHz): phase discriminator 1- or 2-fold evaluation
  • max. 15 kHz (TTL 15 kHz): phase discriminator 4-fold evaluation
  • attenuated 30 Hz
  • For further details, see graphic and manual.
Overload Protection
  • ext. backup
  • DC: 0.16 AT (IEC 127), DC: 0.2 AT (UL 198)
  • 24 VAC : 315 mAT
  • 115 VAC: 63 mAT
  • 230 VAC: 32 mAT
  • 100-240 VAC 630 mAT
Overload Protection Relay Output
  • ext. backup 230 V
  • 2.5 A mT
Sensor Supply
  • Transformer power supply: 12-24 VDC (load-dependent)
  • max. 50 mA
  • switch power supply 24 VDC -5%
  • max. 115 mA, max. capacitative load 470 µF
Storage of ValuesNVM > 10 years
Electrical Connectionpluggable screw terminals / connecting clamps
Amplitude Threshold
  • 8 V or 4 V at TTL levels
  • amplitude max. 40 VDC
Active Edgeprogrammable, positive with PNP input, negative with NPN input
Pulse Shapeany square wave (1:1 for max. frequency)
Prescaler0.0001 - 9.9999
Display and Preset Range- 99 999 to + 99 999
Relay (Preset 1 and 2)
  • Varistor max. 250 VAC / 30 VDC / 5 A
  • Varistor min. 5 VAC / 5 VDC / 10 mA
  • Delay < 10 ms
Transistor output (Preset 1 + 2)
  • DC supply: PNP output 12 - 30 VDC, max. 50 mA
  • transformer power supply (24, 115, 230 VAC): PNP output 12 - 24 VDC, max. 30 mA
  • switch power supply 100-240 VAC: PNP output 24 VDC, max. 50 mA
Application Output
  • DC supply: PNP output 12 - 30 VDC, max. 20 mA
  • transformer power supply (24, 115, 230 VAC): PNP output 12 - 24 VDC, max. 20 mA
  • switch power supply 100-240 VAC: PNP output 24 VDC, max. 20 mA
Attention
  • Only for transformers (24, 115, m230 VAC:
  • The energy load on the outputs (sensors 12-24 VDC, out1, out2, Appl.-Outp.) may not be more than 65 mA total.
Counter Mode Input A,B
  • Single channel add or sub, directional input,
  • differential operation add / sub, totalizing operation add / add,
  • phase discriminator 1-, 2- or 4-fold evaluation
Application Input/Output (Counter)
  • Output: Prescaler-out
  • direction-out
  • input: Reset
  • Gate
  • Keylock
  • Hold
Product Familysigno 721
FunctionTotalizing counter
TechnologyElectronic
Digits5-digit
Display
  • 5-digit
  • 2-line
  • counting display/presets
  • leading zero suppression
  • decimal point (up to 4 places)
Preset
  • 1 preset
  • 2 presets
Digit Height [mm]
  • 1. Line 12.0 mm (0.5 in)
  • 2. Line 6.0 mm (0.3 in)
Display Variant
  • reflective LCD
  • transmissive negative LCD, digits backlit white or red on a black background
View Angle12:00
Relay1 or 1 relays
Voltage
  • 12-30 VDC
  • 24-240 VAC
Reset
  • manual reset
  • electrical reset
  • automatic reset
Signal Times0.01 s to 599.99 s or bistable, programmable, tolerance + 10 ms
Current Consumption [mA]
  • < 200 mA at 12-30 VDC reflective
  • < 250 mA at 12-30 VDC with backlight
  • <250 mA at 24 VAC
  • <50 mA at 115, 230 VAC
  • <80 mA at 100-240 VAC switching power supply
Power Consumption< 5 W?<8 W
Cable Cross-Section1...1.5 mm? (0.0015...0.0023 in?) with multicore cable end
Input Resistanceapprox. 10 kOhm
Pulse Length min.17 ms (30 Hz), 8 ?s (60 kHz)
Supply Voltage
  • 12-30 VDC
  • 24, 115, 230 VAC
  • 100-240 VAC
Count Frequency [Hz]
  • max. 60 kHz (TTL 20 kHz): Single-channel counting and directional input
  • max. 60 kHz (TTL 20 kHz): differential or totalizing operation
  • channel (A+B together)
  • max. 30 kHz (TTL 20 kHz): phase discriminator 1- or 2-fold evaluation
  • max. 15 kHz (TTL 15 kHz): phase discriminator 4-fold evaluation
  • attenuated 30 Hz
  • For further details, see graphic and manual.
Overload Protection
  • ext. backup
  • DC: 0.16 AT (IEC 127), DC: 0.2 AT (UL 198)
  • 24 VAC : 315 mAT
  • 115 VAC: 63 mAT
  • 230 VAC: 32 mAT
  • 100-240 VAC 630 mAT
Overload Protection Relay Output
  • ext. backup 230 V
  • 2.5 A mT
Sensor Supply
  • Transformer power supply: 12-24 VDC (load-dependent)
  • max. 50 mA
  • switch power supply 24 VDC -5%
  • max. 115 mA, max. capacitative load 470 µF
Storage of ValuesNVM > 10 years
Electrical Connectionpluggable screw terminals / connecting clamps
Amplitude Threshold
  • 8 V or 4 V at TTL levels
  • amplitude max. 40 VDC
Active Edgeprogrammable, positive with PNP input, negative with NPN input
Pulse Shapeany square wave (1:1 for max. frequency)
Prescaler0.0001 - 9.9999
Display and Preset Range- 99 999 to + 99 999
Relay (Preset 1 and 2)
  • Varistor max. 250 VAC / 30 VDC / 5 A
  • Varistor min. 5 VAC / 5 VDC / 10 mA
  • Delay < 10 ms
Transistor output (Preset 1 + 2)
  • DC supply: PNP output 12 - 30 VDC, max. 50 mA
  • transformer power supply (24, 115, 230 VAC): PNP output 12 - 24 VDC, max. 30 mA
  • switch power supply 100-240 VAC: PNP output 24 VDC, max. 50 mA
Application Output
  • DC supply: PNP output 12 - 30 VDC, max. 20 mA
  • transformer power supply (24, 115, 230 VAC): PNP output 12 - 24 VDC, max. 20 mA
  • switch power supply 100-240 VAC: PNP output 24 VDC, max. 20 mA
Attention
  • Only for transformers (24, 115, m230 VAC:
  • The energy load on the outputs (sensors 12-24 VDC, out1, out2, Appl.-Outp.) may not be more than 65 mA total.
Counter Mode Input A,B
  • Single channel add or sub, directional input,
  • differential operation add / sub, totalizing operation add / add,
  • phase discriminator 1-, 2- or 4-fold evaluation
Application Input/Output (Counter)
  • Output: Prescaler-out
  • direction-out
  • input: Reset
  • Gate
  • Keylock
  • Hold
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