Siemens ST PCS 7 manual 11/54, Terminal modules for Siguard power modules, Failsafe kit

© Siemens AG 2007

Process I/O

ET 200S distributed I/O

SIGUARD safety technology

Terminal modules for SIGUARD power modules

The terminal modules integrate the SIGUARD power modules. Using different terminal modules it is possible to separate vari- ous safety circuits by function or else to cascade them. Each such group has to be terminated with a SIGUARD PM-X connec- tion module.

•The TM-PF30 S47-B1 terminal module always stands at the beginning of a safety segment and integrates either the PM-D F1 power module for emergency stop applications or the PM-D F2 power module for protective door monitoring. The 2-channel connection of the safety sensor (e.g. emer- gency stop button) as well as the 24 V DC supply for the elec- tronics (V1) and the contactor supply (V2) of the motor starters have to be connected to this terminal module. Connections for the ON button (enable) and the safe output of the power mod- ule are also available.

•The TM-PF30 S47-B0 terminal module is used for the cascad- ing of subordinate safety segments and integrates either the PM-D F1 power module for emergency stop applications or the PM-D F2 power module for protective door monitoring. No additional auxiliary voltage has to be connected to this termi- nal module. The supply is fed through the terminal module voltage buses from the preceding PM-D F1 or PM-D F2 power module. Switching off the voltage of the preceding power module means that the terminal module has no voltage either.

•The TM-PF30 S47-C1 terminal module always stands at the beginning of an expansion of a safety segment in a new sta- tion, e.g. in an interlaced configuration. It integrates the PM-D F3 power module for time-delayed shut-down or the PM-D F4 power module for direct shut-down in physically separated ET 200S stations. The 24-V voltages for the electronics (V1) and for the contactor supply (V2) are provided again. The shut-down command of a preceding ET 200S station is inte- grated through a safe input. Separate terminals are available for connecting the feedback circuit to the upstream ET 200S station. It is not possible to connect safety sensors to this ter- minal module.

•The TM-PF30 S47-C0 terminal module is used to cascade subordinate safety segments and integrates either the PM- DF3 power module for time-delayed shut-down or the PM-DF4 power module. Only the supply voltage V2 for the contactor supply need be connected on this terminal module. The sup-

ply with V1 is via the voltage buses of the terminal modules of

11 the previous power modules (partial voltage group). It is not possible to connect safety sensors to this terminal module.

•The TM-PF30 S47-D0 terminal module is used to integrated the PM-D F5 power module. At this terminal module it is pos- sible to forward safe signals to external systems through four groups, each with two safety relay contacts in redundant con- figuration. The terminal module must always be positioned be- tween one of the above mentioned terminal modules and a ter- minal module for the TM-X connection module. It is not possible to connect safety sensors to this terminal module.

TM-X terminal module for SIGUARD connection module

For connecting an external incoming supply contactor (second shut-down option) in Categories 3 and 4. The SIGUARD con- nection module is inserted to the right of the last motor starter in a safety segment. The terminals for connecting the positively driven NC contact of the contactor are located alongside the ter- minals for connecting the contactor coil on the TM-X terminal module. If no redundant contactor is required in Category 2 (EN 954-1), for example, the feedback circuit has to be closed at these terminals by a jumper. This arrangement is also used in- stead of SIGUARD power module as an interface to the external safety relay when external safety relays are used.

SIGUARD PM-D F1/F2/F3/F4/F5 power modules

The following SIGUARD PM-D power modules are available for selection:

•PM-D F1 for evaluating emergency stop circuits with the func- tion "Monitored start".

•PM-D F2 for monitoring safety doors with the function "Auto- matic start".

•PM-D F3 as expansion for PM-D F1/F2 for time-delayed trip- ping.

•PM-D F4 for expanding safety circuits with other ET200S mo- tor starters, e.g. on a different tier.

•PM-D F5 for transmitting the status of PM-D F1...4 over four floating relay circuits to external safety devices (contact multi- pliers)

No additional PM-S power module is required when using the SIGUARD power modules. SIGUARD PM-D F1/F2/F3/F4 power modules monitor auxiliary voltages and contain the complete functionality of a safety relay. The PM-D F1 and PM-D F2 mod- ules can be combined with the PM-D F3 or PM-D F4 modules.

APM-D F5 can be arranged in any position between PM-D F1...4 and a PM-X.

Every safety circuit, starting with a PM-D F1 ... 4, has to be ter- minated with a PM-X.

Failsafe kit

Every standard motor starter in a safety segment has to be sup- plemented by the failsafe kit (F-kit) in order to monitor the switch- ing function. F-kit 1 supplements the DS1-x direct-on-line starter, F-kit 2 the RS1-x reversing starter.

The F-kits comprise

•contact carriers for the terminal modules,

•one or two auxiliary switch blocks for the contactor(s) of the motor starter and

•connecting lines.

High feature motor starters and their terminal modules come equipped with the F-kit functions.

11/54

Siemens ST PCS 7 · November 2007