3RP15051AP30 SIEMENS, 3RP15051AP30 Datasheet - Page 52

• Manufacturer Part Number: 3RP15051AP30
• Description: TIMER, MULTIFUNCTION
• Manufacturer: SIEMENS

Specifications of 3RP15051AP30

• Contact Configuration: SPCO
• Nom Input Voltage: 240V
• Delay Time Range: 0.5s To 10s
• Adjustment Type: Screwdriver Slot
• Relay Mounting: DIN Rail
• Coil Voltage Vac Nom: 240V
• Coil Voltage Vdc Nom: 24V

General data
Standards for "Safety of machines"
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Stop categories
Potential dangers posed by a machine must be eliminated as
quickly as possible.
As a rule, the "danger-free status" is standstill with respect to
hazardous motions. All SIRIUS safety relays are de-energized in
the event of danger or a fault, i.e. the machine drives are
switched to standstill. The EN 60204 standard requires that
every machine must be equipped with the Stop function of
Category 0. Stop functions of Categories 1 and/or 2 must be
implemented when this is necessary for the safety and/or
functional requirements of the machine.
There are 3 categories of Stop functions:
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The devices support autostart or monitored start depending on
their versions.
Autostart/Manual start
Autostart: The device switches on the enabling circuits
automatically as soon as the switch-on conditions (sensor and
feedback circuits closed) are satisfied.
Manual start: If an ON pushbutton is installed in the feedback
circuit, a manual start can be provided with the autostart
function.
Caution: Not permissible for EMERGENCY-STOP Category 4!
Monitored start
To switch on the enabling circuits the switch-on conditions
(sensor and feedback circuits closed) must be satisfied. In
addition the device must be started with an ON pushbutton.
The device responds in this case to the negative edge of the
ON signal.
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EN 60204-1 "Electrical equipment of industrial machines"
EN 418 "EMERGENCY-STOP equipment, functional aspects,
basic design principles"
EN 574 "Two-hand switching"
EN 954-1 "Safety-related parts of controls"
EN 1050 "Guidelines for risk assessment"
EN 1088 "Locking facilities in combination with isolating
protective devices"
IEC 61508 "Functional safety of electrical/programmable
solid-state safety related systems"
Stop category 0:
Shutdown by immediate switch-off of the energy infeed to the
machine drives.
Stop category 1:
Controlled shutdown, whereby the energy infeed to the
machine drives is maintained during shutdown and is only
switched off when standstill has been achieved.
Stop category 2:
Controlled shutdown, whereby the energy infeed to the
machine drives is maintained.
3TK28 Safety Relays
Siemens LV 1 · 2006
Crossover protection
Crossover protection is the ability of the safety relay to detect
faults (e.g. through cable compression or ground faults) in the
safety chain to be monitored and to suppress the enabling of the
enabling circuits until the external fault has been rectified.
EMERGENCY-STOP
EMERGENCY-STOP devices must have priority over all other
functions.
The energy infeed to the machine drives that can cause
dangerous situations must be switched off as quickly as
possible without causing any further danger. Resetting of the
drives must not result in restarting of the equipment.
EMERGENCY-STOP must either function as a Stop of Category 0
or Category 1.
Resetting of the command device must only be possible as a
result of a manual action on the command device. Resetting of
the command device must not initiate a restart command.
Restarting of the machine must not be possible until all actuated
operator controls have been reset deliberately and individually
by hand (EN 418).
The basic units of the SIRIUS safety relays can be used for
EMERGENCY-STOP applications up to Category 4 of EN 954-1.
Category 3 or 4 of EN 954-1 or SIL 2/3 (Safety Integrity Level)
acc. to IEC 61508 must be achieved depending on the external
circuit and routing of the sensor leads.
Protective door monitoring
EN 1088 distinguishes between interlocked, isolating protection
devices and interlocked, isolating protective devices with
tumbler.
SIRIUS safety relays are also used in this case for EMERGENCY-
STOP applications. Control systems for up to Category 4 of
EN 954-1 or SIL 2/3 of IEC 61508 are possible.
Presses and punches
The two-hand control unit is a device that requires both hands of
the operator to be used simultaneously as a means of protecting
the operator from danger.
The devices are suitable for installation in control systems for
eccentric, hydraulic and screw presses. They can be used up to
Category 4 of EN 954-1. Type III C according to EN 574 is
possible specifically for presses.