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1 • INSTALLATION

• Dimensions and cut-out; panel mounting

2 • TECHNICAL DATA

 556

 

TIMER - COUNTER - FREQUENCY METER

I

nputs

1500V isolation (only with Vac feed to logic output).

3 inputs for count, reset of Counter or Timer, Up-Down or Start/Stop, 

Hold.

Maximum counting frequency with 50% duty cycle:

- type 2 inputs: fmax = 100Hz

- type 1 inputs: fmax = 1KHz

- type 0 inputs: fmax = 5KHz

Input types:

Mechanical contact: voltage-free, configured in opening/closing

Proximity switch: 2/3 wires NPN

Logic: OFF ≤ 1Vdc, 3mA; 10Vdc < ON < 50Vdc

O

utputs

Relays:

With 5A/250Vac contacts at cos

j

 = 1 (3.5 at cos

j

 = 0,4)

Spark suppression on NO contact.

Logic (on request):

23Vdc, Rout = 470Ω (20mA, max. 12V)

p

Ower

 

supply

110/220Vac ±10% - 120/240Vac ±10% 

24/48Vac ±10%  - 24Vdc ±10%  - 50/60Hz; 5VA max. 

p

Ower

 

supply

 

fOr

 s

ensOr

12Vdc, 30mA

A

mbIent

 C

OndItIOns

Working temperature: 0…50°C

Storage temperature: -20…70°C

Relative humidity: 20…85% non-condensing
O

perAtIOn

Timer

The software can be programmed to have the timer count up or down.

If the timer is used, the inputs have the following significance:

IN1: Start/Stop input 

IN2: Reset input

IN3: Hold or Up/Down input 

Output action after alarm is configurable. (*TN47, TVD1)

Counter

The counter can be configured to count up or down.

A prescale factor (:2, :10, :100, x2) can be inserted on the Clock.

The displayed/set value can be expressed in engineering units. 

Conversion (from number of pulses to engineering units) is done by 

setting two factors (MUL and DIV), which will be multiplied or divided, 

respectively, by the number of pulses actually counted.

The counter inputs perform the following functions:

IN1 : Clock input (fmax. 5KHz)

IN2 : Reset input

IN3 : Hold or Up/Down input

Output action is configurable. (*CN47, CVD)

Frequency meter

The inputs perform the following functions:

IN1 : Clock input

IN2 : Reset input for max. peak or min. peak functions 

IN3 : Hold input

In this configuration as well, the display and setting can be expressed 

as the value converted into engineering units by means of the MOL and 

DIV factors. (*DRM)

(*)Gefran instruments replaced by model described

O

utput

 

funCtIOns

The output performs the following functions:

configuration as timer with countdown and input IN3 with HOLD (a) or 

UP/DOWN (b) function.

In all other cases (counter and frequency meter), output functions are 

unchanged.

In timer and counter mode, the max. trip delay is 1msec non-repetitive.

w

eIght

240g

For correct installation, follow the instructions and warnings contained in this manual.

!

Panel mounting.

Faceplate dimensions: 48x48mm./1.89”x1.89” (1/16DIN); depth: 100mm/3.94”

Cut-out dimension: 45(+0.6/-0)x45(+0.6/-0)mm/1.77” (+0.02/ -0)x1.77”(+0.02/-0)”.

To attach the instrument, insert the two brackets in the housings on the top and bottom of the case and 

tighten with the screws. To mount two or more instruments in a row or column, use the clips and respect 

the following cut-out dimensions:

Row: Base (48 x n) -3, (1.89”x n) -0.11” Height 92 (+0.8/ -0) /3.62” (+0.03/ -0)

Column: Base 45 (+0.6/-0)1.77”(+0.02/-0) Height (96xn)-4/(3.78”xn)0.15” 

where “n” is the number of instruments.

CE MaRkIng:The instrument conforms to the European Directives 2004/108/CE and 2006/95/CE with 

reference to the generic standards: EN 61000-6-2 (immunity in industrial environment) EN 61000-6-3 (emission 

in residential environment) EN 61010-1 (safety).

MaInTEnanCE: Repairs may be done only by trained and specialized personnel. Cut power to the instru-

ment before accessing internal parts. Do not clean the case with hydrocarbon-based solvents (trichloro-

ethylene, gasoline, etc.). The use of such solvents will compromise the instrument’s mechanical reliability. 

Use a clean cloth moistened with ethyl alcohol or water to clean external plastic parts.

TEChnICaL sERvICE: GEFRAN has a technical service department. Defects deriving from any use not 

conforming to this manual are excluded from the warranty

1

80469C_MHW_556_02-2011_ENG

Summary of Contents for 556

Page 1: ...in peak functions IN3 Hold input In this configuration as well the display and setting can be expressed as the value converted into engineering units by means of the MOL and DIV factors DRM Gefran instruments replaced by model described Output functions The output performs the following functions configuration as timer with countdown and input IN3 with HOLD a or UP DOWN b function In all other cas...

Page 2: ...eters can be set during configuration The decimal point on the right indicates display of set 2 F LED signals I1 State of IN1 input signal Start Stop in case of timer Clock in case of counter and frequency meter I2 State of IN2 input signal in case of timer and frequency meter IN3 in case of counter LED off corresponds to input OFF LED on corresponds to input ON O State of output relay LED on rela...

Page 3: ...N2 RESET IN3 HOLD or UP DOWN see configuration of IN3 functions If the function of IN3 is defined as UP DOWN it causes inversion of the current value of Time 1 Time 2 maintains its direction If the timer is configured to down Fun 0 it loads the preset value and counts down toward zero by closing IN3 if configured to active when closed you tempo rarily reverse the direction of time 1 to up until Fu...

Page 4: ...ions displayed value frequency MUL DIV Example 1 You want to display the number of rpms of a wheel with 250 pulses rev Rpm frequency 60 250 frequency 6 25 Set FP 0 MUL 6 DIV 25 Example 2 You want to determine the frequency in impulses second of a system with a decimal figure using a sampling time of 5 sec for greater stability Set FP 12 MUL 1 DIV 5 P d 1 t SP 5 0 In operation as frequency meter th...

Page 5: ... FUNCTIONS The figures show the Timer functions Typ 0 with countdown Fun 0 For counters Typ 1 in cases out 1 6 Timer and Timer 1 become Counter 1 and Counter 2 For the frequency meter Typ 2 with out 4 there is a second setpoint for hysteresis a IN3 0 IN 3 with HOLD display function b IN3 1 IN3 with UP DOWN function out 1 Standard U1 Function Timing begins and proceeds until the trip point if the I...

Page 6: ...scribed for function U4 with the difference that the relay remains energized even if the timer value exceeds the trip point out 6 Function U6 Non cyclical monostable with reset Similar to function U3 but with the difference that at the end of timings the timer reloads the preset value only after input IN2 out 7 Function U7 Cyclical double counter with superimposed counts Similar to U2 but instead ...

Page 7: ...If the device has faston terminals they must be protected and isolated if the device has screw terminals wires should be attached at least in pairs Power supplied from a disconnecting switch with fuse for the device section path of wires from switch to devices should be as straight as possible the same supply should not be used to power relays contactors solenoid valves etc if the voltage waveform...

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