Circuit Diagram; Connection Terminals; Application; Functions - DOLD UH 5947 Manuel D'utilisation

Circuit Diagram

U2 E2 GND 68
A1
A2 U1 E1 GND 38
+
Encoder
13 23 43 53
K3
K1
K2 K4
14 24 44 54
T1 T2 T3 T4
13 14 23 24 EA1 EA2 RF1 ST
43 44 53 54 P1 P2 RF2 MAG
M10325_a

Connection Terminals

Terminal designation
A1 (+)
A2
U1, U2
GND
E1, E2
13, 14, 23, 24, 43, 44, 53, 54
38, 68
T1, T2, T3, T4
ST, MAG, RF1, RF2, P1, P2,
EA1, EA2

Application

This device is designed for machinery and installations where hazards to
people and property may be caused by the movement of machines or parts.
The device permanently monitors for standstill (output circuit 13/14, 23/24)
and rotational speed (output circuit 43/44, 53/54). For the rotational speed
monitoring, it is possible to choose between automatic and setup mode.
If properly connected, the UH5947 can be used to implement the
safety functions STO (safe torque off), SOS (safe operation stop),
SLS (safely limited speed), SSM (safe speed monitoring), SSR (safe
speed range), as well as SDL (safe door locking) as per standard
EN 61800-5-2.

Functions

The device can be configured from the display and keys on the front plate
or via RJ45 using a suited connection cable (see accessories) by means
of the copy function.
Following measuring sensors can be used to sense the rotational speed:
• Two NPN or PNP proximity sensors (special version with NAMUR
sensors) connected to the inputs E1 and E2. The proximity sensors
(NAMUR sensors) are supplied with 24VDC from the speed relay to the
terminal U1 and U2 (special version NAMUR 8.2V DC).
• Encoders (sin/cos, TTL, HTL) connected to the RJ45 interface via cable
adapter (optionally available). The powersupply for the encoder is not
provided by the speed monitor. Feedback influences should not occur.
• Combination from encoder and one proximity or NAMUR sensor for
special version.
UH 5947.04
Signal description
+ / L
- / N
+ supply for proximity sensors or
NAMUR-sensors
- supply for proximity sensors
Input for pulse signal from proximity
sensors or NAMUR-sensors
Forcibly guided NO contacts for
release circuit
Semiconductor-monitoring output
Control output
Control input

Indicator

→ Run
DEVICE: green
green-flashing → Parameterization mode
→ Parameterization error
red-flashing
→ Device fault
red
→ Output contact 13/14, 23/24 closed
K1/K2: green
green-flashing → Stop monitoring feedback loop 2
→ Output contact 43/44, 53/54 closed
K3/K4: green
green-flashing → Stop monitoring feedback loop 1
→ no failure
SF: OFF
→ (external) failure
red
→ Status indication
DISPLAY:
→ Alarms / diagnostics
→ Parameterization

Device and Function Description

Overview on terminals and their function
Supply voltage A1, A2
Terminal for power supply to the device (see technical data).
Measuring inputs U1, U2, GND, E1, E2, and RJ45
The terminals E1 and E2 are provided for NPN or PNP proximity sensors
(special version with NAMUR sensors). The switches are supplied with
24VDC (special version NAMUR U1, U2 = 8.2VDC) via the terminals U1,
U2 and GND. The type of sensor (NPN or PNP) is to be selected in the
menu.
The RJ45 interface is suited for the connection of encoders with sin/cos,
TTL and HTL signals.
Output circuits (contacts) 13/14, 23/24, 43/44, 53/54
The device has two output circuits that are equipped with each two safety
relays (standstill K1, K2; speed range (window) K3, K4) with forcibly guid-
ed contacts connected in series.
- Automatic mode: Monitoring of automatic rotational speed window
and standstill speed.
- Setup mode: Monitoring of setup rotational speed window.
Standstill is permanently enabled.
Signalling outputs 38 und 68
The non safety semiconductor signalling outputs 38 and 68 are designed
for connection to a PLC, for example. They work as follows:
The terminal 38 outputs the internal supply potential (U
when the rotational speed drops under the set standstill speed (n < n
i.e. a standstill is detected.
The terminal 68 outputs the internal supply potential (U
when the rotational speed is within the set speed limits of the setup or
automatic mode (n < n < n
min max
If the release monitoring time is exceeded for RF1, a flash code signal is
shown on monitoring output 68 with an ON/OFF ratio of 50/50.
Variant /101: The semiconductor outputs are not switching synchronous to
the relay outputs. The semiconductor outputs give out the incoming signal
22
failed
failed
approx. 24 V)
Rel
approx. 24 V)
Rel
).
UH 5947 / 10.01.17 en / 813
),
Still