ATG TACHOGENERATOR ALARM

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Limit Alarms (potentiometer adj.) A-UNIT

TACHOGENERATOR ALARM

Functions & Features
• Providing SPDT relay outputs at preset AC voltage levels from a tachogenerator
• Dual (Hi/Lo) trip
• Energized or de-energized coil at a tripped condition selectable
• Hysteresis (deadband) adjustable
• Enclosed relays
• Relays can be powered 110 V DC
• High-density mounting
Typical Applications
• Annunciator
• Various alarm applications

MODEL: ATG-[1]1[2][3]-[4][5]

ORDERING INFORMATION

• Code number: ATG-[1]1[2][3]-[4][5]
Specify a code from below for each of [1] through [5].
(e.g. ATG-1111-B/Q)
• Special input range (For code U)
• Specify the specification for option code /Q
(e.g. /C01/S01)

[1] INPUT

Voltage
1: 0 – 35 V AC (Input resistance 100 kΩ min.)
2: 0 – 50 mV AC (Input resistance 100 kΩ min.)
3: 0 – 60 mV AC (Input resistance 100 kΩ min.)
4: 0 – 100 mV AC (Input resistance 100 kΩ min.)
5: 0 – 1 V AC (Input resistance 100 kΩ min.)
6: 0 – 10 V AC (Input resistance 100 kΩ min.)
7: 0 – 100 V AC (Input resistance 100 kΩ min.)
8: 0 – 110 V AC (Input resistance 100 kΩ min.)
9: 0 – 150 V AC (Input resistance 100 kΩ min.)
A: 0 – 200 V AC (Input resistance 100 kΩ min.)
B: 0 – 250 V AC (Input resistance 100 kΩ min.)
U: Specify voltage (See INPUT SPECIFICATIONS)
(0 % input must be 0 V.)

SETPOINT ADJUSTMENTS

1: Single-turn screws

[2] SETPOINT 1 OUTPUT

1: Hi (coil energized at alarm)
2: Hi (coil de-energized at alarm)
3: Lo (coil energized at alarm)
4: Lo (coil de-energized at alarm)

[3] SETPOINT 2 OUTPUT

1: Hi (coil energized at alarm)
2: Hi (coil de-energized at alarm)
3: Lo (coil energized at alarm)
4: Lo (coil de-energized at alarm)

[4] POWER INPUT

AC Power
B: 100 V AC
C: 110 V AC
D: 115 V AC
F: 120 V AC
G: 200 V AC
H: 220 V AC
J: 240 V AC
DC Power
S: 12 V DC
R: 24 V DC
V: 48 V DC
P: 110 V DC

[5] OPTIONS

blank: none
/Q: With options (specify the specification)

SPECIFICATIONS OF OPTION: Q (multiple selections)

COATING (For the detail, refer to our web site.)
/C01: Silicone coating
/C02: Polyurethane coating
/C03: Rubber coating
TERMINAL SCREW MATERIAL
/S01: Stainless steel

GENERAL SPECIFICATIONS

Construction: Plug-in
Connection: M3.5 screw terminals
Screw terminal: Chromated steel (standard) or stainless steel
Housing material: Flame-resistant resin (black)
Isolation: Input to output 1 to output 2 to power
Zero adjustment: -5 to +5 % (front)
Span adjustment: 95 to 105 % (front)
Setpoint adjustments: 270°-turn screwdriver adjustments (front); 0 – 100 % independently
Hysteresis (deadband) adjustments: 1 – 100 % (front)
Front LEDs: LED turns on at a tripped condition; red for output 1, green for output 2
Power ON timer: Relays de-energized for approx. 2 seconds after power is turned on.

INPUT SPECIFICATIONS

• AC Voltage: 0 – 250 V AC
Minimum span: 50 mV
Frequency: 15 Hz min., 1 kHz max. with 100 % input
Input resistance: ≥ 100 kΩ

OUTPUT SPECIFICATIONS

■ Relay Contact: 100 V AC @ 1 A (cos ø = 1)
120 V AC @ 1 A (cos ø = 1)
240 V AC @ 0.5 A (cos ø = 1)
30 V DC @ 1 A (resistive load)
Maximum switching voltage: 380 V AC or 125 V DC
Maximum switching power: 120 VA or 30 W
Minimum load: 5 V DC @ 10 mA
Mechanical life: 5 x 10⁷ cycles
For maximum relay life with inductive loads, external protection is recommended.

INSTALLATION

Power input
• AC: Operational voltage range: rating ±10 %,
50/60 ±2 Hz, approx. 2 VA
• DC: Operational voltage range: rating ±10 %, or 85 – 150 V for 110 V rating (ripple 10 % p-p max.)
approx. 2 W (80 mA at 24 V)
Operating temperature: -5 to +60°C (23 to 140°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: Surface or DIN rail
Weight: 450 g (0.99 lb)

PERFORMANCE in percentage of span

Trip point repeatability: ±0.5 %
Temp. coefficient: ±0.05 %/°C (±0.03 %/°F)
Response time: ≤ 0.7 sec. (0 – 100 % at 90 % setpoint)
Line voltage effect: ±0.1 % over voltage range
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 2000 V AC @1 minute (input to output 1 to output 2 to power to ground)