Baumer GAM900S Benutzerhandbuch
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E-connection
Do not perform any electrical modifications at the acceleration sensor or any wiring
work while the device is live. Never plug or unplug the electrical connection while the
acceleration sensor is live. Arrange for separate power supply of the acceleration
sensor where working with consumers with high interference emissions.
Completely shield the acceleration sensor and connecting cable. Make sure the en-
tire system is installed in line with EMC requirements. Ambient installations and ca-
bling affect the electromagnetic compatibility of the acceleration sensor. Install acce-
leration sensor and supply cables separately or far away from cables with high inter-
ference emissions (frequency converters, contactors, etc). Use shielded connecting
cables
.
- GAM900S in plastic housing: Provide cable shield at the control unit.
- GAM900S in aluminium housing: Provide cable shield on both ends and connect with
sensor housing via M12 connector.
Requirements according to EN 60204-1 need to be fulfilled when connected
with cables longer than 20 m.
Terminal assignment
Connector 1, M12 connector 12-pin
a) Standard Assignment
Pin 1
GND
Pin 2
Test input
Pin 3
UB
Pin 4
Analog Ground
Pin 5
Analog output X
Pin 6
Analog output Y
Pin 7
Relay 1 / Safety contact NO*
Pin 8
CAN Ground
Pin 9
Relay 1 / Safety contact CO*
Pin 10
n.c.
Pin 11
CAN Low
Pin 12
CAN High
connector 1
connect. 1 connect. 2
Connector 2, M12 connector 12-pin
a) Standard Assignment
Pin 1
Relay 2 / contact CO*
Pin 2
Relay 3 / contact NO*
Pin 3
Relay 3 / contact CO*
Pin 4
Relay 3 / contact NC*
Pin 5
Relay 4 / contact NO*
Pin 6
Relay 4 / contact CO*
Pin 7
Relay 4 / contact NC*
Pin 8
CAN Ground
Pin 9
Relay 2 / contact NO*
Pin 10
Relay 2 / contact NC*
Pin 11
CAN Low
Pin 12
CAN High
b) Option -3500 same as a) standard, but:
Connector 1
Pin 10
Relay 1 / contact NC*
Connector 2
Pin 2
Relay 1a / Safety contact NO
Pin 3
Relay 1a / Safety contact CO
Pin 4
Relay 1a / contact NC
Pin 5
n.c.
Pin 6
GND
Pin 7
UB
c) Option -3501 same as a) standard, but:
Connector 1
Pin 10
Relay 1 / contact NC*
Connector 2
Pin 2
Relay 1a / Safety contact NO
Pin 3
Relay 1a / Safety contact CO
Pin 4
Relay 1a / contact NC
d) Option -3502 same as a) standard, but:
Connector 2
Pin 5
n.c.
Pin 6
GND
Pin 7
UB
Terminal assignment options:
-3500: voltage supply and redundant safety relay at connector 2
-3501: redundant safety relay at connector 2
-3502: voltage supply at connector 2
* Customer-specific relay configuration on request
Mounting instructions
Avoid shocks and impacts on the housing as well as any deformation. Mounting tole-
rances may have an influence on the measured result.
Attach the acceleration sensor firmly (1.9 Nm) at its mounting bores using M4
screws. Proceed with alignment of coordinates (x-/x+/y-/y+/z-/z+). Particularly with
user-specific configuration in deep pass filtering, an inclined mounting position will be
indicated as offset in the acceleration signal.
2-axes 3-axes
–y
+x
–x
+y
+z
–z
–y
+x
–x
+y
Mounting
bores with
screws M4
Safety instructions
Observe the legal obligations, directives and standards applicable for the use
respectively intended use. Hence, the acceleration sensors of the GAM900S
series are compliant to the standards of the EC type certification.
Only replace a defective by an identical product. The 8-digit reference
number on the product label („item“) is mandatory here.
The device must not be used when presenting any trace of damage.
Do not operate the device beyond the limits specified in the data sheet. The
applicable GAM900S (81138531) data sheet version number 1.02 is availa-
ble for download at www.baumer.com.
Check all electrical connections prior to commissioning of the installation.
Mounting, installation and e-connection or any other work performed at the
acceleration sensor must be carried out by authorised experts only.
Appropriate safety precautions must be taken to exclude any risk of personal
injury and damage to operating equipment as a result of an acceleration sen-
sor malfunction. Any failure in GAM900S operation is signaled by entry into
„safe state“.
Product selection and installation
Selection and installation by authorised expert staff only.
Safety-relevant key characteristics
Performance Level (ISO 13849)
PLd
Category (ISO 13849)
3
MTTF
d
(ISO 13849)
393 years
DC
avg
(ISO 13849)
86 %
TM (service life, ISO 13849)
20 years
Safety integritiy level (IEC 61508 / EN 62061) SIL2 / SIL CL2
PFH
D
(IEC 61508)
2.5 E-09 1/h
PFD
avg
(IEC 61508)
2.1 E-04
Error reaction time
<50 ms*
* The error reaction time does not include filtering delay in the acceleration informati-
on (customer-specific, optionally on request). Filter delay and balancing are defined
by filter type and limit frequency and must be considered by the customer in safety
certification of the installation.
During filter balancing after initialisation (e.g. application of voltage supply), the safe
limit verification is capable of value evaluation independent of the currently present
acceleration.
Intended use of the device
The acceleration sensor is a precision instrument. It is intended to detect and monitor
acceleration as well as to evaluate and supply the information in the form of electrical
output signals for the downstream device. The acceleration sensor must not be used
for any other purpose. Functionality is described in the data sheet and this mounting
instruction. The customer is to verify whether the device is suitable for the intended
application task.
Transport, storage and disposal
Only ever transport and store the acceleration sensor in its original packaging.
Never drop the acceleration sensor – otherwise the device must no longer be used.
Dispose of the components observing the legal regulations prevailing in your country.
Dimensions
GAM900S - plastic housing, 1 x M12 connector
GAM900S - aluminium housing, 1 x M12 connector
GAM900S - aluminium housing, 2 x M12 connector
GAM900S - plastic housing, 2 x M12 connector
Safety functions
The safety function of the acceleration sensor is given through monitoring
proper switching of relay 1 (safety relay) when exceeding the specified acce-
leration limit (user-defined by the ordering information in the data sheet).
Standard release time is 1 second (see data sheet). Default configuration of
other times on request. Switching operations of the safety relay, particularly
at short release times, are seen by safety-related evaluation for safety func-
tion trigger.
Acceleration sensors of the GAM900S series comply with safety function
„relay switching at limit excess“ and all requirements of Performance Level
PLd resp. safety integrity level SIL2 / SIL CL2 in line with ISO 13849 resp.
IEC 61508 / EN 62061.
For safety reasons, relay evaluation by CO / NO contacts is mandatory
(„closed circut principle“)
Product variant with series-connected safety relays
(standard product and option -3502)
Safe state
Switching relay 1 is indicating the safe state.
- Contact CO / NO is open
NO
CO
Following events will make the device enter the safe state:
- Exceeding the limit value (see ordering information in the data sheet)
- Failure (internal failure)
- In zero current state (without supply)
Standard operation
In standard operation (no failure and current acceleration within the limit),
the following applies:
- Contact CO / NO is closed
Product variant with parallel outbound safety relays
(option -3500 and -3501)
Both safety relays 1 and 1a must be evaluated individually and under safety
aspects (see terminal assignment option -3500 or -3501). CO / NO contact
behavior is identical to the abovementioned safety relays connected in se-
ries. In addition both safety relays 1 and 1a provide outbound NC contact.
- Following applies to
- Safe state:
contact CO/NC closed
- Standard operation:
contact CO/NC closed
NO
NC
CO
Note: Safety relay 1a configuration ever corresponds to the configuration of
safety relay 1.
Product variants with two M12 connectors feature additional, non-safety rele-
vant relays that on request are configured by default according to customer
specifications.
Maintenance/relay test
The customer is to ensure proper relay function by correspondingly docu-
mented tests
once a year.
Any other maintenance during the service life of the product is not required.
Proper relay functionality can be tested using the test input or the CANopen
restart command.
Customer is to verify proper switching of the relay contacts. Faulty relay swit-
ching after test initialization would call for device exchange.
Test input
Proper relay functionality is tested by twice a high signal applied at the re-
spective pin. Signal level must exceed the voltage supply by 70 %. Signal
period and pause between two high signals is between 1 and 3 seconds.
T
T
T
>0.7 x UB
1s < T < 3s
Details for CANopen communication and the restart command in particular
can be found in the instruction manual.
Relay functionality
In standard operation (current acceleration within the limit), the following
applies:
- Contact CO / NO is closed
- Contact CO / NC is open
Max. switching voltage: 30 V, max. switching current: 1.5 A.
Switching of inductive load is not permitted.
Supply voltage UB / GND
The specified GAM900S voltage supply is 10...30 VDC.
The safety function is activated when exceeding the maximum voltage of
30 VDC. For protection against overvoltage, voltage supply must be backed
by a
SELV / PELV-supply unit compliant to EN 60950, which in the event of
failure would supply a maximum voltage of 60 V.
EN Translation of the original operating and
mounting instructions
GAM900S
Acceleration sensor for safety-rated applications