DOLD SAFEMASTER S UH 6932, Operating Instructions Manual

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20
UH 6932 / 21.08.18 en / 010A
LED ON: green On, when supply connected
green-flashing Parameterization mode
red-flashing Parameterization error
LED K1/K2: green Relay K1 and K2 energized
yellow Muting (Relay K1 and K2 energized)
LED ERR: red Internal failure
red-flashing External failure
LED t: green-flashing (K1/K2; light up)
Expiry of the delay time periods t
A
or t
U
yellow-flashing (K1/K2 does not light up)
Expiry of the delay time periods t
F
yellow-flashing (K1/K2 light up)
Expiry of the delay time periods t
V
DISPLAY: Status indication
Alarms / diagnostics
Parameterization
The auxiliary voltage is connected to terminals A1 to A2. The equipment
can be configured via the display and the setting keys on the front plate.
The detection of the speed is effected via two NPN- or PNP-proximity
switches, which are connected up at the Inputs: E1 and E2. The electric
power supply for the proximity switch is provided from the speed monitor
of 24V DC at the Terminals: U1 and U2. For each initiator a separate wire
has to be used and wired separately. The input speed are compared in-
ternally to the thresholds already set on the equipment. As the internally
measures the time periods, the fastest possible speed detection monito-
ring is possible. Should the over-speed function be set, then the output
relay will switch to the alarm mode, when the set response parameter
is over-exceeded longer than the parametered alarm-delay function (t
V
).
Should the speed fall again below the response parameter, minus the set
hysteresis, the output relay will be activated after the expiry of the reset-
delay time period (t
F
) and return to its pre-set permitted supervisory state.
As regards the under-speed function, the output relay will switch to the
alarm mode, when the set response parameter is under-exceeded longer
than the parametered alarm-delay function (t
V
) time period. As soon as
the speed return to the range governed by the response parameter, plus
the set hysteresis, then the output relay will again return to the pre-set
permitted state after the expiry of the reset-delay time period (t
F
). In the
„internal window function mode“, the output relay will switch to the alarm
setting when the speed exceed the pre-set permitted range of the res-
ponse parameter. Once the speed again return within the range of both
the upper- and lower response parameters, minus and/or plus the pre-
set hysteresis values (upper response parameter minus- and/or the lower
response parameter plus -the relative hysteresis values), then the output
relay will again switch back to the pre-set permitted range after the expiry
of the reset-delay time period (t
F
).
M10956_b
T2
38
RF
48
13 23
14 24
K1
K2
RES
A2
T1
GND
GND
A1
+
U2 GND E2
U1 GND E1
24 14 13 23
UH 6932
M10954_b
T2
38
RF
48
13 23
14 24
K1
K2
RES T1
SW3 SW2 SW1 SW4
A
+
A
GND
A2 GND
A1
+
U2 GND E2
U1
GND E1
24 14 13 23
UH 6932/_ _1
Terminal designation Signal designation
A1+ DC24V
A2 0V
U1, U2 (+) supply for proximity sensors
E1, E2 measuring inputs for proximity sensors
GND Reference potential for
Semiconductor monitoring output
and control outputs, as well as (-)
supply for proximity sensors
13, 14, 23, 24 Forcibly guided NO contacts for
release circuit
38, 48 Semiconductor-monitoring output
T1, T2 Control output
RES, RF, SW1, SW2, SW3, SW4 Control input
A +, A GND Analogue output
In the „external window function mode“, the monitoring function acts inver-
sely to the „internal window function“. Should the manual reset function be
activated, then the output relay continues to remain in the alarm setting
when the speed return to the pre-set permitted range. A resetting of the
saved parameter is possible when the reset input is activated or the auxi-
liary voltage is shutdown.
When a start-up delay time (t
A
) is set, then the set start-up delay time will
initially expire as soon as the auxiliary voltage of the equipment is swit-
ched-on and the ‘RF’ feedback circuit is closed. The start-up delay time will
also expire after a reset of the manual reset mode. During this time period,
a speed evaluation is disabled and the output relays remain at the pre-set
permitted setting. The start-up delay function can, for example override an
alarm message during the start-up stage of a generator or electric motor.
Should, after a reset (in the manual reset mode), the feedback circuit not
be closed, then the equipment will go into a safe error state.
With correct connection it is possible to realise with the UH 6932 the
safety functions STO (Safe Torque Off), SOS (Safe Operating Stop),
SLS (Safely Limited Speed), SSM (Safe Speed Monitor) and SSR (Safe
Speed Range) according to EN 61800-5-2. The actual realisation of the
safety functions has to be validated in each application of the product for
safety aspects.
Circuit Diagrams Functions
Functions
Indicators Connection Terminals