Datasheet

PNOZmulti 2 products
Motion monitoring modules
PNOZ m EF 1MM
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: [phone], Telefax: [phone], E-Mail: [e-mail]
2015-11
736
Safe speed monitoring
The Safe speed monitoring function (SSM) monitors the current speed to see if a limit
value is exceeded.
If the configured limit value is exceeded, the output switches off. As soon as the value falls
below the limit value (plus hysteresis), the output switches off again.
If a manual reset is configured, the output will not switch back on until the value is inside
the limit value (plus hysteresis) and the reset input is activated.
12 limit values can be configured per axis in the PNOZmulti Configurator.
A tolerance range may also be set for the limit values used to monitor the speed. This toler-
ance range modifies the set limit values. As a result, one-off or periodic overshoots that ex-
ceed the limit values can be tolerated.
The following values can be configured for the tolerance range:
} Tolerance time (t1), which takes into account the length of the overshoots (maximum
time for which the limit value may be exceeded). It must not be possible that the sum of
all the overshoots exceeds the tolerance time (t1) within a tolerance period (t2).
} Tolerance period (t2), which takes into account the oscillation period (minimum time
that must elapse between one limit value overshoot and the next)
} Tolerance amount (%), which takes into account the amplitude of the overshoots (max-
imum permitted percentage by which the configured limit values may be exceeded)
Tolerance amount (%)
Limit value
Speed +
Tolerance amount (%)
t
v
Limit value
Speed -
SSM
SSM
t
s
t
e
Enable SSM
0
1
Legend:
} Enable SSM:
– "1": Monitored limit value not exceeded