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Configuring the Safety Opti...
6 Configuring the Safety Option
6.1 PROFIsafe Configuration
6.1.1 Telegram Configuration
Use parameter 42-60 Telegram Selection to select the safe
fieldbus type and telegram standard that the safety option
uses to communicate with the safe PLC. Safety Option
MCB 152 supports PROFIsafe standard telegram 30. If the
parameter is set to [0] None, the safe fieldbus is disabled.
The following tables describe the PROFIdrive on PROFIsafe
standard telegram 30 bits. In a PLC program, address the
6
6
safety functions using bits and not bytes.
Byte 0 is PROFIdrive on PROFIsafe specific and byte 1 is
vendor-specific.
PROFIsafe control word (CTW)
Byte
Bit
Byte 0
0
Byte 0
1-6
Byte 0
7
Byte 1
0-7
Table 6.1 PROFIsafe Control Word (CTW)
1) Bits that are not supported are set to 0.
Bit 0, STO
Bit 00 = 0, Safe Torque Off (zero-active).
Bit 00 = 1, No Safe Torque Off.
Bit 7, INTERNAL_EVENT_ACK
When this bit changes its value from 1 to 0, the safety
option gives an acknowledgement to the safety fault
buffer. Fault entries in the safety fault buffer are shifted to
the last acknowledged fault situation. Faults which are still
present or not acknowledgeable appear again in the actual
fault situation. For more information, refer to the
PROFIdrive profile description at www.profibus.com.
PROFIsafe status word (STW)
Byte
Bit
Byte 0
0
Byte 0
1-6
Byte 0
7
Byte 1
0
Byte 1
1
Byte 1
2-7
Table 6.2 PROFIsafe Status Word (STW)
1) Bits that are not supported are set to 0.
20
Safety Option MCB 152
1)
Name
STO
Not supported
INTERNAL_EVENT_ACK
Not supported
Name
1)
POWER_REMOVED
Not supported
INTERNAL_EVENT
Status DI1
Status DI2
Not supported
Danfoss A/S © 10/2014 All rights reserved.
Byte 0, Bit 0, POWER_REMOVED
Bit 00 = 0, Safe Torque Off inactive.
Bit 00 = 1, Safe Torque Off active.
Byte 0, Bit 7, INTERNAL_EVENT
Bit 07 = 0, No safety fault.
Bit 07 = 1, Safety fault present.
Byte 1, Bit 0, Status DI1
Bit 00 = 0, the digital input is active.
Bit 00 = 1, the digital input is inactive.
Byte 1, Bit 1, Status DI2
Bit 01 = 0, the digital input is active.
Bit 01 = 1, the digital input is inactive.
To show the hex values of PROFIsafe status word and
PROFIsafe control word on the LCP, use 42-83 Safe Status
Word and 42-82 Safe Control Word. The hex values are used
for debugging purpose or for transferring the safe control
information to a non-safe control environment.
Safe fieldbus address
Set the safe fieldbus address in parameter 42-61
Destination Address. For PROFIsafe, the valid values are
from 1 to 65535. This address must be unique in the
network where PROFIsafe operates. The address should
match the address specified in the PLC configuration.
6.1.2 Safety Functions Configuration
Use the MCT 10 Set-up Software Safe plug-in to configure
the safety functions and to enable the PROFIsafe
communication. For more information, refer to
chapter 5.3.2 Commissioning in Online Mode.
NOTICE
Always perform the required commissioning test. The
commissioning test report is automatically generated via
the Safe Plug-in in MCT 10 Set-up Software after writing
the parameters to the safety option.
6.1.3 Password Protection
Use a password to protect the system configuration. A
password must be entered only when changing safety
option parameters (writing to option).
The default password is 12345678.
Change the safety option default password before
downloading the parameter values of a safety option with
factory settings.
MG37F102
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