Repeat Cycle Timers, MC Series Timers, Airotronics,

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Repeat Cycle Timers - MC Series Timers


Repeat Cycle Timers - MC Series Timers
MC Series Repeat Cycle

The MC Series repeat cycle timers use a micro processor platform to provide excellent accuracy and repeatability. Time settings are easy with the integral dip switches. These units can handle loads up to 20 amps (1.5 HP) without heat sinking.

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Timing Mode

Application of input voltage to the timer starts the “On” time delay. At the end of the “On” time delay, the “Off” time delay starts. At the end of the “Off” time delay, the load is again energized, the timer returns to the “On” time delay, and the cycling continues as long as input voltage is applied. When the “Off” time is first, the sequence will be reversed. Removal of the input voltage resets the timer.

FEATURES
  • Outputs total up to 20 amps
  • User selectable first delay –“On” or “Off”
  • Two 4 bit dip switches for setting “On” and “Off” time periods
  • Available in standard voltage inputs
  • Initiate switch option
  • No limit to duration of time periods
  • Crystal generated time base
  • Ultra accurate timing with no drift over full temperature and voltage range
  • Optional remote-time adjustment
  • Standard octal (8 pin), magnal (11 pin) plug-ins or 4.75 mm (.187") blade terminal mountings
  • Easy to install
  • Totally encapsulated for protection from harsh environments
  • No external output devices needed
  • No heat sinking required
  • Increased system reliability
  • 100% Operational testing before shipping
  • With EEPROM option, can be used instead of mechanical cam timers
BASIC WIRING AND DIMENSIONS
SPECIFICATIONS

Input Voltage:

  • +15%/-15%
  • VDC: 12 or 24
  • VAC: 12, 24, 120, 230, 50/60 Hz

Time Mode:

  • Type: Digital CMOS – Programmable
  • Time Range: Unlimited

Repeatability: 0.1%

Setting Accuracy:

  • 0.1% or 50 milliseconds, whichever is greater

Reset Time: 50 milliseconds

Relay Life Expectancy:

  • Mechanical: Up to 10 million operations
  • Electrical: 100,000 operations at max. load

Protection:
Transient Protection:

  • 45 joules (120 VAC)
  • 75 joules (230 VAC)

Temperature Ranges:

  • Storage: -40° C to +85° C
  • Operating: -25° C to +85° C
SELECTION PROCEDURE
Series Input Voltage 5 Digit Program Number
(Established at the Factory to Customer’s Application)
Outputs
MC 1 120 VAC
2 230 VAC
3 24 VAC
4 24 VDC
7 12 VDC
8 VAC(Specify)
Example: 8(32) 32 VAC
9 VDC (Specify)
Example: 9(30) 30 VDC

Example #1
00030 = 1–15 Seconds Dual
Adjustable Recycle

Example #2
00031 = 2 Channel One Shot
2.3 Seconds on 18.1
Seconds Off Fixed Recycle

First Digit = # of 6 or 10 amps Current Outputs
(Maximum of 2)

Second Digit = Relay Suffix
(x = 6 amps, h = 10 amps)

Third Digit = # of 20 amps Outputs
(1 only)

Fourth Digit = Relay Suffix
(j = 20 amps, 1.5 hp)



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