The unit is used for safe standstill
monitoring. It is designed for use on
` Standstill monitoring on plants with
dangerous machine parts or tools
(EN 1088 clause 7.4),
` Safety circuits in accordance with
EN 60204-1 and IEC 60204-1.
Standstill is only detected on powerfree measuring circuits. Residual voltages, induced voltages or drives within the position control will prevent safe
standstill detection!
The device uses two separate measuring channels to measure the regenerated voltage, induced from the motor
during the rundown period or during
start-up. If the voltage falls below the
set response value (standstill threshold), the standstill monitor enables the
monitored plant. If the voltage exceeds the set release value, the standstill monitor disables the monitored
plant.
To reactivate, the voltage at both
channels must fall below the response
value U
within the time tg (simultane-
on
ity monitoring). To do this the feedback loop Y1-Y2 must be closed. If the
Timing diagram
POWER
POWER
Feedback
Feedback
Output safe
Output safe
simultaneity requirement is exceeded,
the standstill monitor does not enable
the monitored plant. The unit can be
reactivated by switching 24 VDC on
and off at the RESET input.
The response value U
can be set
on
jointly for both channels in order to suit
the motor that is to be monitored. The
release value U
(hysteresis) corre-
off
sponds to twice the response value.
When used with frequency converters,
the PSWZ X1P cannot detect standstill
until the controller inhibit has been
switched off.
After the supply voltage is switched
on, the unit performs a self test. The
unit simulates a situation in which the
release value is exceeded and the
measuring circuit has an open circuit.
The correct function of the output relay
and feedback loop is also tested. The
test takes ca. 1.5 s.
Operating modes:
` Single-channel operation:
– One measuring circuit affects
both channels
– No redundancy (failsafe) in the
measuring circuits
` Dual-channel operation:
– Two redundant (identical) meas-
uring circuits affect channel 1
and 2
– Monitoring of voltages in the
measuring circuit (failsafe in the
event of a short circuit)
This data sheet is only intended for use
during configuration. For installation
and operation, please refer to the op-
10
AC15: 230 V
erating instructions supplied with the
unit.
1
D Nennbetriebstrom (A)
GB Nominal operating current (A)
F Courant coupé (A)
0.1
E Corriente nominal de servicio (A)
ICorrente di esercizio nominale (A)
NL Nominale bedrijfsstroom (A)
10100100010000
D Schaltspielzahl x 10
GB Cycles x 10
F Nombre de manvres x 10
Technical details
Electrical data
Supply voltage
Supply voltage U
AC/DC24 - 240 V
B
Voltage tolerance-15 %/+10 %
Power consumption at U
Power consumption at U
AC5.0 VA
B
DC3.0 W
B
Frequency range AC50 - 60 Hz
Residual ripple DC160 %
Voltage and current at
Feedback loop DC: 24.0 V35.0 mA
Number of output contacts
Safety contacts (S) instantaneous:2
Auxiliary contacts (N/C):1
Category of output contacts in accordance with EN 954-1
Safety contacts (S) instantaneous:4
Utilisation category in accordance with EN 60947-4-1
Safety contacts: AC1 at 240 VI
Safety contacts: DC1 at 24 VI
Auxiliary contacts: AC1 at 240 VI
Auxiliary contacts: DC1 at 24 VI
: 0.01 A , I
min
P
max
: 0.01 A , I
min
P
max
: 0.01 A , I
min
P
max
: 0.01 A , I
min
P
max
Utilisation category in accordance with EN 60947-5-1
Safety contacts: AC15 at 230 VI
Safety contacts: DC13 at 24 V (6 cycles/min)I
Auxiliary contacts: AC15 at 230 VI
Auxiliary contacts: DC13 at 24 V (6 cycles/min)I
max
max
max
max
Contact materialAgCuNi + 0.2 µm Au
DC13: 24 V
3
3
max
: 1500 VA
max
: 150 W
max
: 1500 VA
max
: 150 W
: 3.0 A
: 4.0 A
: 3.0 A
: 4.0 A
: 6.0 A
: 6.0 A
: 6.0 A
: 6.0 A
DC1: 24 V
AC1: 230 V
E Número de ciclos x 10
INumero dei cicli di commutazione x 10
External contact fuse protection (IK = 1 kA) to EN 60947-5-1
Blow-out fuse, quick
Safety contacts:6 A
Auxiliary contacts:6 A
Blow-out fuse, slow
Safety contacts:4 A
Auxiliary contacts:4 A
Circuit breaker 24 VAC/DC, characteristic B/C
Safety contacts:4 A
Auxiliary contacts:4 A
Semiconductor outputs (short circuit proof)24.0 V DC, 50 mA
External supply voltage24.0 V DC
Voltage tolerance-20 %/+20 %
Semiconductor input
High15 VDC
Low5VDC
Input current20 mA
Measuring circuit
Input voltage L1-L3, L1-L2, L2-L30 – 690 VAC/DC
Input voltage in accordance with UL0 – 600 VAC
Frequency range0 – 3000 Hz
Input impedance1300 kOhm
Switching threshold per channel
Response value U
Release value U
Max. inrush current:10 A, max. 20 ms
Times
Switch-on delay at motor standstill
Max.1,500 ms
After power on max.2,200 ms
Delay-on de-energisation after motor on max.170 ms
Recovery time at max. switching frequency 1/s
after power failure2200 ms
Simultaneity, channel 1 and 27 s
Supply interruption before de-energisation 20 ms
Environmental data
EMCEN 60947-5-1, EN 61000-6-2, EN 61000-6-4
Vibration to EN 60068-2-6
Frequency10 - 55 Hz
Amplitude0.35 mm
Climatic suitabilityEN 60068-2-78
Airgap creepageEN 60947-1
Ambient temperature-10 - 55 °C
Storage temperature-40 - 85 °C
Protection type
Mounting (e.g. cabinet)IP54
HousingIP40
TerminalsIP20
Mechanical data
Housing material
HousingPPO UL 94 V0
FrontABS UL 94 V0
on
off
7,5 – 500 mV Order no.: 777951, 787951
20 - 500 mV Order no.: 777949, 787949
120 - 3000 mV Order no.: 777950, 787950
Max. cross section of external conductors with screw terminals
1 core flexible0.25 - 2.50 mm² , 24 - 14 AWG Order no.: 777949, 777950,
777951
2 core, same cross section, flexible:
with crimp connectors, without insulating sleeve0.25 - 1.00 mm² , 24 - 16 AWG Order no.: 777949, 777950,
without crimp connectors or with TWIN crimp connectors0.50 - 1.50 mm² , 24 - 16 AWG Order no.: 777949, 777950,
Torque setting with screw terminals0.60 Nm Order no.: 777949, 777950, 777951
Max. cross section of external conductors with cage clamp terminals/spring-loaded terminals: Flexible without crimp connectors
Cage clamp terminals/spring-loaded terminals: Terminal points
per connection
Stripping length8 mm Order no.: 787949, 787950, 787951
Dimensions
Height101.0 mm Order no.: 787949, 787950, 787951
Width45.0 mm
Depth121.0 mm
Weight315 g Order no.: 787949, 787950, 787951