CTA USER MANUAL
2007-05-09 - 4 - © DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
CHAPTER ONE: BASIC INSTRUCTIONS
1.1 Features
Delta CTA series is the 3-in-1 timer, counter and tachometer with the following features:
Can be a timer, counter, or tachometer and can operate in timer + counter mixed mode.
Offers voltage input (PNP) or non-voltage input (NPN).
The Pre-Scale function allows the input pulses to be displayed in their actual units.
Counting speeds available: 1/30/200/1K/5K/10K cps. Maximum: 10K cps.
The counting can be conducted in millisecond, second, minute, minute/second and
hour/minute/second.
Output 1 contains relay output and transistor output. The two types of outputs can be enabled
concurrently.
Offers total counting and batch counting.
“Reset” and “Lock” keys for more convenient use.
Offers 6-digit double-line LCD display.
Offers easy DIP switch setup.
Decimal point setup available.
1.2 Ordering Information
There are currently two model types available: CTA4000A and CTA4100A, only differentiating in the
type of output 2.
1
2
3
4
5
CTA: Delta Timer/Counter/Tachometer A series
n Panel size 4: 48mm × 48mm
o Output 2 0: Transistor 1: Relay
p Preset stage 0: 2 preset stage
q Communication 0: None
\ Power supply A: AC100 ~ 240V
1.3 Specifications
Power input AC100 ~ 240V, 50/60Hz
Input voltage range 85% to 110%, rated voltage
Power consumption Less than 10VA
12Vdc ±10%, 100mA
Display Double-line, 6-digit LCD display
Input signal
Non-voltage input (NPN): ON impedance 1K ohm max. ON residual voltage: 2V max.
Voltage input (PNP): High level: 4.5 to 30Vdc, Low level: 0 to 2Vdc
Output 1
Relay: SPST max.250Vac, 5A (resistance load)
Transistor: NPN open collector. When 100mA /30Vdc, residual voltage = 1.5Vdc max.
Output 2
Relay: SPDT max.250Vac, 5A (resistance load)
Transistor: NPN open collector. When 100mA /30Vdc, residual voltage = 1.5Vdc max.
Dielectric strength 2000Vac 50/60 Hz for 1 minute
Vibration resistance Without damage: 10 ~ 55Hz, amplitude = 0.75mm, 3 axes for 2 hours
Shock resistance Without damage: drop 4 times, 300m/s
2
, 3 edges, 6 surfaces and 1 corner
Ambient temperature
0°C to +50°C
Storage temperature
-20°C to +65°C
Altitude 2000m or less
Ambient humidity 35% to 85% RH (non-condensing)
Pollution degree Degree 2
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