Protection, Safety And Control Elements - GIRBAU PB32 Series Installation, Operation And Maintenance Instructions Manual

1.6. Protection, safety and control elements

DANGER!
NEVER OVERRIDE A PROTECTION, SAFETY OR CONTROL DEVICES.
NEVER OPERATE THE MACHINE WITHOUT ALL THE SAFETY GUARDS CORRECTLY IN PLACE AND
FIXED.
Safety guards
To safeguard the operator, a set of guards screen the machine from its surroundings.
Switch breaker
To connect or disconnect the machine from the external power supply.
Emergency stop button
The emergency stop button is a SAFETY device. The machine is equipped with 1 emergency stop device which
is identified with a red button on a yellow background and which is located on the right-hand front cover. The
function of this element is to STOP the machine IMMEDIATELY and keep it halted.
Hand protection (movable guard with locking device)
The hand protection guard is a SAFETY element consisting of a tilting cover located on the machine's feeding
tray designed to prevent the hands from being inserted into the roll and the trapping point between it and the
pressure roller.
Pushing or pulling the movable cover HALTS the roll immediately. The machine will remain in this state until the
cover is moved back to the resting position.
The hand guard stop is also assigned to operate as a safety stop from any part of the introduction zone.
Checking the proper functioning of the hand guard is an essential prerequisite for starting up the ironer.
Temperature probes
These constantly monitor the temperature of the surface of the ironing roll, adapting it to the programmed value.
PB/PBP51, X20 models with steam heating and PB3215, X13 models: 1 probe.
Other models: 3 probes.
Electric circuit safety measures
To protect the electric circuit against external malfunctions and prevent any malfunctioning causing damage to
the operator. The principal ones are: Automatic switches, circuit separation transformer, protection for the
motors, external protection (EP). Protection fuses of the control circuit.
Pressure switch of maximum pressure
Controls the suction in the exhaust circuit.
Minimum operating pressure:
In case of a drop in suction in the exhaust circuit, the pressure value decreases, and the pressure switch stops
the machine from running and also emits an alarm.
Safety thermostat
This limits the surface temperature of the roll. It protects against an overheating of the roll caused by a fault in
the system regulating the ironing temperature. Tared to 200ºC (392ºF).
Safety when starting the flatwork ironer
If a momentary interruption of the power supply occurs, the machine shuts down at once and does not resume
until the corresponding start button is pressed.
Heating system start-up safety feature
A power cut or the detection of an alarm automatically switches off the heating system, and it does not resume
I
until the corresponding and
General description
PB32, X13: 6 mm.c.a. (0.24 in.wc.)
PB/PBP51, X20: 4 mm.c.a. (0.16 in.wc.)
and buttons are pressed.
18
Code no. 550038
Rev. no. 16/1018