Hengstler signo 727 SSI User manual

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operating instructions
signo 727 SSI
Position-Indicator with/without limit
values and SSI input from absolute
encoder
1. Safety instructions
This instrument has been built and tested in
accordance with EN 61010, part1 - Protection
Measures for Electronic Measuring Instruments -
and have left our works in safe and proper condition.
In order to maintain these conditions and to ensure
safe operation, the user must observe the
instructions and warnings provided in these
operating instructions.
•This units must only be operated if correctly
installed!
•The supply voltage must be derived from a SELF
SOURCE (12-24VDC versions) according to EN 60
950, since no galvanic separation is provided
between power-supply and electronic in-/outputs!
•When mounting and installing the units, the
instructions of the local suppliers of energy are to
be considered.
•The unit must only be opened for setting by trained
personnel.
•The plug-in terminals, at rear of the unit, must not
be accessed before first isolating the supply.
•The identification numbers of the plug-in terminals
and of the corresponding socket strip must be
observed.
•Unassigned terminals (NC) may not be connected!
•Connection terminals are to be protected by
installation!
Contents
1. Safety instructions 1
2. Mounting of the position indicator 2
2.1 Mounting and dimensional drawing 2
2.2.1 Connections 2
2.2 Terminal connections 2
2.2.2 Description of inputs and outputs 3
2.3 Description of function of position
indicator 3
3. Operation of the position indicator 3
3.1 Display and keyboard 3
3.2 Setting the reference value and resset
of the chain value 3
3.3 Changing limit value 1and 2 and set
value 4
4. Programming 4
4.1 Survey 4
4.2 Display of the absolute data of the
absolute shaft encoders 5
4.3 Changing system parameters 5
4.4 Survey on the system parameters
and alternatives 5
5. Locking of keyboard functions 6
6. Failures and error messages 6
7. Technical data 6
7.1 Ordering information 7
7.2 Accessories 7
7.3 Explanation of technical terms 7
•In order to ensure hand contact safety at the
connection terminals, live wires must be con-
nected properly to the connection terminals.
•If safe operation can no longer be ensured, the
position indicator must be disabled and secured
against accidential operation.
•Installation of electrical devices should only be
carried out by a qualified electrican.
•Panel mounting devices should only be operated
when proberly mounted in the panel
•Before switching on, make sure that the power and
control voltages do not exceed the values specified
in the technical data.
•In a situation where failure of the device could
cause harm to people, animals or property,
additional safety measures must be employed,
e.g. stop switches, protection devices etc.
•Hengstler counters are intended for industrial
applications.
•The mounting and environment and nearby cabling
have an important influence on the EMC (noise
radiation and noise immunity) of the counter.
When putting into operation, the EMC of the whole
installation (unit) has to been secured. In
particular, the relay outputs are to be protected
from high noise radiation by suitable wiring.

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2. Mounting of the position indicator
Mounting and dimensional drawing (dimensions in mm)
2.1 Mounting the position indicator into the panel.
1. Slide installation frame towards the rear and off the position indicator, lift the two self locking catch
springs.
2. Turn back the screws of the installation frame by approx. 5 mm.
3. Insert position indicator into the cut-out of panel and snap installation frame into place
4. Fix the position indicator with the screws against the panel.
2.2 Terminal connections
Attention:
Take care that all parts of system are deenergized during the installation of position indicator and that current is
not switched on during assembly!
Safety conditions are to be observed during installation, which shall be effected by trained personnel only.
Caution: The operation and/or switched voltages can reach 100...240 VAC!
To maintain interference grade 3, all count and control lines shall be shielded. The supply lines should be
routed in separate channels.
2.2.1 Connection
AC-Version: here with limit values DC-Version: here without limit values

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2.2.2 Description of in- and outputs
Function Terminal Remarks:
Power supply of position
indicator AC: Terminal 1-4 DC: Terminal 1-2 at 230 VAC: bridge terminals 2-3; at 115 VAC: bridge terminals 1-2 and 3-4;
at 12..24VDC:Terminals 3 and 4 are not connected
Relay output for limit
value 1 or limit value 2 Terminal 6-8 or 10-12 change over contact, Remark: these terminals are not connected at position indicators without limit values
Transistor output for limit
value 1 or limit value 2 Terminal 14 or 15 PNP transistor output 10 mA, Remark: these terminals are not connected at position indicators without limit values
Sensor power supply Terminal 32 and 31 Supply of sensor with 12...24 VDC / 60 mA (max)
DATA + Terminal 30 differential signal data + (data input from SSI - encoder)
DATA - Terminal 29 differential signal data - (data input from SSI - encoder)
CLOCK + Terminal 28 differential signal clock + (clock output for SSI - encoder)
CLOCK - Terminal 27 differential signal clock - (clock output for SSI - encoder)
Keylock Terminal 26 locking of operation levels can be programmed (see chapter
4.3)
Application input Terminal 25 set value, refernce point, display hold or chain reset, can be
programmed ( see chapter 4.3)
2.3 Description of function of position indicator
The position indicator is working in range mode, i.e. the output signals (Out 1 and Out 2) are set when reaching
the respective limit value. The bistable signal is active until the count value falls below the limit value or the
counter is reset to zero.
Reset to zero or to the set value is done manually from the keyboard or electrically from the reset input.
Example 1: (set value = 0)
limit value 2
limit value 1
Out1
Out2
t
count impulses
Example 2: (set value between limit value 1 and limit
value 2)
limit value 2
limit value 1
Out1
Out2
t
count impulses
set value
3. Operation of the position indicator
3.1 Display and keyboard
DATA
CHAIN
SET
P2
P1 SSI
Area A: Display, in counting mode showing the
actual or absolute position (chain value or absolute
value), and in programming mode the changeable
parameters.
Area B: LED indicators
LED Explanation
P1 OUTPUT1of limit value 1 is active
P2 OUTPUT1of limit value 2 is active
SET display shows set value
DATA display shows absolute value
CHAIN display shows chain value
Area C: Keyboard: The use of the different keys is
explained in chapter 3.2 .
1only position indicator with limit value

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3.2. Setting the reference value or reset of the chain value
Function Procedure
•Setting the absolute value to a
reference value When absolute value is dis-played: Press simultaneously the buttons R and -
•Zerosetting of the chain value
When chain value is dis-played (LED CHAIN illuminated): Press R-button.
•Cancelling reference value Press simultaneously the buttons R and
3.3 Changing of limitation value 1, limitation value 2 and set value
Function Procedure
•Selection of limitation value 1 Press key F1 (LED P1 is flashing)
•Selection of limitation value 2 Press key F2 (LED P2 is flashing)
•Selection of set value Press key E and F1 simultaneously (LED SET is flashing)
•Changing parameters Press -key (arrow up) to change the value of the blinking digit.
Press -Key (arrow left) to switch to the next digit. Change sign
with the +/- key. Press R-key to reset the value to zero
•Storage of parameters Press E key shortly to exit and return to display mode
•Exit without storage by time criterion: the return to the display mode is automatically
done 15 sec after the last pressing of a key, without storing the
changed parameter
4. Programming
4.1 Survey
level 1
SET: Setvalue
long (>2s)
Power ON
and
simultaneous
P1: limit-value 1* P2: limit-value 2*
short
-key to switch to the
remarks:
next parameter
DISPLAYMODE (Normal Count Mode)
simultaneoussimultaneous
short
level 2
level 3
short
Absolute-Postion-Mode CHAIN-Mode
switch Mode
Reset absolute
Value
(CHAIN-LED illuminated)
reset Chain-
value to Zero
simultaneous
short
singleturn display
z.Bsp. _4321
multiturn display
z.Bsp. 8765_
System parameters:
'F1' = totalresolution in bit
'F2' = singleturn resolution in bit
'F3' = binary/gray code
'F4' = format
'F5 ' = output P1 locked / free
'F6' = output P2 locked / free
'F7' = special bits
'F8' = display per revolution
'F9' = display divisor
'F10' = drive direction
'F11' = multiple transmission
'F12' = decimal point
'F20' = funktion of first limit value
'F24' = switching pnp/npn
'F26' = locking set function
'F27' = locking level 1
'F28' = locking level 2
'F29' = locking buttons F1/F2
'F30' = basic settings
'F31' = function application input
'F35' = display of chain value
* only for position indicators with limitation values

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4.2 Display of the absolute data of the absolute shaft encoders
Function Procedure
•Entering level 2 Press E and F2 simultaneously, light diode DATA is illuminated
•Select absolute data Press to switch either to single turn or to multi turn data.
Editing of the value is not possible.
For differentation of the data, the values are displayed:
Singleturn: f.e. _4321
Multiturn: f.e. 8765_
4.3 Changing system parameters
Function Procedure
•Entering level 3 Press keys E and -key (arrow up) key in de-energized state, then switch
on power
•Selection of changeable
parameter Press key E shortly, until the desired indication " " in display is flashing (see table chapter 4.4)
•Changing parameter Selection of the various alternatives for each parameter by pressing -key
(arrow up) (see table chapter 4.4)
•Storage of parameter value Press key E shortly to switch to the next parameter or press Key E for at
least 2 sec to exit operation level and return to the display mode
•Exit level 3 without storage by the time criterion: the return to the display mode is done automatically 15
sec after a key has been pressed last, without the changed parameter being
stored
4.4 Survey on the system parameters and alternatives
Parameter Display Alternatives / Signification
total encoder
resolution / bit 'F1' '1' to '24'* total encoder resolution in bits
encoder resolution single
turn / bit 'F2' '0' to '12''*resolution of the singleturn part in bits
Data coding 'F3' 'bin':*
'Gray': binary code gray code
Data transfer format 'F4' 'Std':*
'tan': standard format, MSB-flush pine-tree format
Signal OUT 1 'F5' 'off':
'bi':* no output signal output signal
Signal OUT 2 'F6' 'off':
'bi':* no output signal output signal
Special bits 'F7' '0':*
'1':
'2':
no special bits
alarm
parity
Display per revolution 'F8' '0'-
'4096' *
-'9999'
value, added to or subtracted from the display per revolution
Display divisor 'F9' '1':*
'10':
'100':
'1000':
value by which the display is divided
(f.e. display per revolution = 35, display divisor = 10, display
per revolution = 3,5; i.e. first revolution = 3, second revolution
= 7).
Drive direction 'F10' '0':*
'1': adding in clockwise sense adding in anti-clockwise sense
Multiple transfer 'F11' '0':*
'1': single transfer double transfer in comparison
Decimal point 'F12' '0':*
'1':
'2':
'3':
no decimal point
-.- decimal point at first digit
-.-- decimal point at 2nd digit
-.--- decimal point at 3rd digit
Function of first limit
value 1 'F20' '0':* '1': limit value 1 is absolute limit value 1 is relative to limit value 2

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Parameter Display Alternatives / Signification
NPN/PNP selection 'F24' '0':
'1':*KEYLOCK and APPL.are low active, npn switching KEYLOCK and APPL.are high active, pnp switching
Set funktion key lock
(calibration) 'F26' '0':*
'1':
if key lock input is active, setting and canceling of calibration
value is not locked
is locked
Level 1 key lock 'F27' '0':*
'1': if key lock input is active, access to level 1 is not locked access is locked
Level 2 key lock 'F28' '0':*
'1': if key lock input is active, access to level 2+3 is not locked access is locked
F1 and F2 key lock 'F29' '0':*
'1':
'2':
'3':
if key lock input is active, keys F1 and F2 are not locked
F1 locked
F2 locked
F1 and F2 are locked
Basic setting 'F30' '0':*
'1': no function all parameters are set to the * marked values
function of application input
'F31' '0':
'1':*
'2':
setting of reference point
display-hold
chain reset
chain mode 'F35' '0':
'1':*chain function locked chain function unlocked
1 hint for funktion of limit value 1: if limit value is absolute, OUT 1 will be active as soon as counter position equals to
limit value 1. If limit value is in relative function, OUT 1 will be active as soon as the counter position equals to limit
value 2 plus limit value 1. Example: limit value 1 = -20, limit value 2 = 100
absolute OUT1 at -20 OUT2 at 100
relative OUT1 at 80 (=100-20) OUT2 at 100
5. Locking keyboard functions
In level 3, the following keyboard functions can be locked: Calibration function, entry to level 1, entry to level 2,
buttons F1 and F2. The setting of those keylocks is explained in chapter 4.3.
6. failures and error messages
failure diagnosis
no display •check if supply voltage is correctly connected/ switched on?
limit and set values
are not programmable •check if level 1 or F1/F2 buttons are locked?
•check if level 2 is locked?
Set function not
possible (calibration
function)
•keylock set function active?
position indicator
does not operate •check if counting input is correctly connected?
•check if display-hold is triggered?
•check if mass connection position indicator-encoder is correct?
•check if encoder is in good condition?
SSI error •data format incorrectly set
•wiring incorrect or connection defective
failure diagnosis
SSI error •no data compatibility at multiple reading
•parity check active and no parity output from encoder
-...... •range exceeded; tune back to the range or set display to defined value.
_...... •fallen below range; tune back to the range or set display to defined value
If any failure occurs, which is not mentioned above, our sales support for electronic counters will assist you.
(Tel. [phone]).

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7. Technical data
Mechanical Specifications
Dimensions according to DIN 43700, 96 x 48 x
108 mm
Mounting with clamping frame in a panel cut-
out of 92x45 mm
Fixing screws M 3
Panel thickness up to 11 mm
Electrical connection three plug-in terminals, 10,8 or 6
poles,
5 mm pattern
Connection profile wire end ferrules 1...1,5mm2
Screw M 2,6
Weight DC version: approx. 200 g;
AC version: approx. 420 g
Electrical Specifications
Power Supply
DC Voltage Ub(Terminal 1-2) 12...24 VDC=
max. Tolerances + 10% / - 5%
Current Consumption max. 250 mA (including sensor
supply 60 mA)
Power Consumption max. 4,5 W
AC Voltage 115/230 VAC /50...60 Hz
max. Tolerances + 6% / - 10%
Overload Protection external Fuse:115V: 63mAT
230V: 32mAT
Current Consumption max. 50/25 mA (incl. sensor
supply)
Power failure one mains half wave according to
IEC 127-2
Inputs and out-puts
of encoder SSi konform
Data input (DATA+ and
DATA-) terminals 29,30 differential signal, RS 422, clock rate approx. 100kHz
Input resistance approx. 470 Ohm
Amplitude max. -7....12V
Clock output
(CLOCK+,CLOCK-)
terminals 27,28
differential signal, RS 422, clock
rate approx. 100kHz
Output level high 3,5V typ., low 1,3V typ.
Output current +/- 8mA typ.,+/- 60mA max.
Wire length 400 m max.
Control Inputs
Switching level low < 2 V, high > 8 V
Amplitude max. 40 V
Active edge pnp/npn selectable
Input resistance approx. 5kOhm
Pulse shape any
Application Input
(Terminal 25) Setting reference point, display hold, chain reset function see
chapter 4.3
Input mode static / dynamic; dependent on
function
PulseDuration Tmin min 3 ms
Keylock input (terminal
26) static
PulseDuration Tmin min 3 ms
Output Values Relay
Output (Terminals 6-8 and 10-12; OUT 1, OUT 2)
Contact Type changeover relay
Contact Guard Circuit no; externally recommended for
capacitive and/or inductive loads
Switching Voltage max 30 VDC/250 VAC; min. 5 V
AC/DC
Switching Current max 1 A; min 10 mA
Relay Response Delay 15 ms
Transistor-Output (terminals 14, 15)
Switching voltage PNP, 24VDC at AC supply, VDC-2V
at DC supply
Switching current 10 mA max.
Response delay 10 ms max.
Sensor Supply
(Terminal 31/32) AC operation: 12-24 VDC, Imax = 60 mA
DC operation: Ub -2V, Imax = 60
mA
Data Retention Data are retained in a non-volatile
memory
Write Cycles >100000
Read Cycles Unlimited
Data Retention >10 years
Display
Type 7-segment LED, 6 digits,
suppression of leading zeros,
programmable decimal point
Display Colour red
Digit Height 14 mm
Indicator LED`s 5
Ambient Conditions / Safety Regulations
Operating Temperature 0°C ... 50°C
Storage Temperature -20°C ... +70°C
Protection Class (IEC
144) front side IP 54, terminals IP 20
Noise immunity EMC according to EN 50082-2
Noise emittance EMC according to EN 50081-2
Vibrostability 10 m/s2(10...150 Hz) according to
IEC 68-part 2-6
Shock stability 100 m/s2(18 ms) according to IEC
68- part 2-27
General Rating DIN EN 61010-T1,protection class
II, contamination level 2, over-
voltage category III
Climatic Standards (DIN
40 040) 40/92 °C/% relative air humidity
7.1 Ordering information
Type Supply Ordering code
signo727 without
limit values 12...24VDC 0 727 111
signo727 without
limit values 115/230VAC 0 727 112
signo727 with limit
values 12...24VDC 0 727 131
signo727 with limit
values 115/230VAC 0 727 132
7.2. Accessories
Adapter frame for panel mounting, cut-out
106 x 55 for panel frame size 4,
ordering code 1 405 679
7.3 Explanation of technical terms
You will find a detailled explanation in the glossary of
our counter catalogue.