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Dold UG6946.02PS 20-400mV 0,2-6s UH=DC24V 0068412 Standstill monitor No. of relay outputs: 3 No. of digital inputs: 2
Product type
Standstill monitor
No. of relay outputs
3
Operating voltage
24 V DC
Type
UG6946.02PS 20-400mV 0,2-6s UH=DC24V
Probe inputs
L1 - L2 - L3
Datasheet (PDF)
EAN:
Part number:
Item no:
Highlights & Details
- Sensorless and safe
- Quick reaction time
- Easy retrofitting, because sensorless
- Can be combined with safety guard SAFEMASTER STS
- Adjustment protection of the rotary switch by sealable transparent cover
Technical specifications
- INPUT (L1 - L2 - L3)
- Measurement/motor voltage: Max. AC 690 V.
- Input resistance 500 kΩ
- Hysteresis (for motor run detection): 100%
- Switch-off delay of the output contacts at
- Motor run detection: < 100 ms
- Downtime ts: 0.2 ... 6 s can be set
- Auxiliary circuit (A1-A2)
- AUXILIARY VOLTAGE UH: 24 V DC
- Recommended fuse: 2 A.
- Voltage range: 0.9 ... 1.2 UN
- Power consumption 3 W
- Max. Remaining ripple (DC): 10%
- On delay of the output relays when the auxiliary voltage is applied (stationary motor): 0.4 ... 0.8 s + set ts.
- Input (MU1-MU2)
- Minimum switch-on/switch-off duration > : 200 ms
- Contact assembly (safety contacts): 2 NO contacts, 1 NC contact
- The normally open contacts can be used for safety shutdowns.
- The NC contact 31-32 can only be used as a signaling contact!
- Contact type: Relay, positively driven
- Nominal switching voltage NO contact 250 V AC
- NC contact 24 V DC
- Thermal current Ith: 5 A (see summation current limit curve)
- Switching capacity according to AC 15 NO contact: 3 A / AC 230 V IEC/EN 60947-5-1
- ACCORDING TO DC 13 CLOSER: 1 A / DC 24 V IEC/EN 60947-5-1
- NC CONTACT 1 A / DC 24 V IEC/EN 60947-5-1
- In response to DC 13 NO contact: 4 A / 24 V at 0.1 Hz IEC/EN 60947-5-1
- NC contact 4 A / 24 V at 0.1 Hz IEC/EN 60947-5-1
- Protection of the safety contacts: Max. safety fuse 4 A GG / GL
- Automatic circuit breaker C6A maximum switching frequency 1200 / h.
- Electrical life 5 A, AC 230 V cos ϕ = 1: ≥ 2 x 105 operations
- Mechanical life: ≥ 20 x 106 operations
- Type
UG6946.02PS 20-400mV 0,2-6s UH=DC24V
- Product type
Standstill monitor
- No. of relay outputs
3
- Probe inputs
L1 - L2 - L3
- Operating voltage
24 V DC
- Dim
(W x H) 22.5 mm x 110 mm
- No. of digital inputs
2
- Mounting depth
120.3 mm
- Weight
230 g
- Width
22.5 mm
- Height
110 mm
- UKCA
yes
Documents & Downloads
Datasheet
Datasheet 2359200 Dold UG6946.02PS 20-400mV 0,2-6s UH=DC24V 0068412 Standstill monitor No. of relay outputs: 3 No. of digital inputs: 2
User & Safety Instructions
User & Safety Instructions 2359200 Dold UG6946.02PS 20-400mV 0,2-6s UH=DC24V 0068412 Standstill monitor No. of relay outputs: 3 No. of digital inputs: 2
Description
Safe standstill detection for 3- and 1-phase electric motors, e.g. for the release of safety door releases on machine tools or for the activation of holding brakes.
The standstill monitor UG 6946 is suitable for detecting the standstill of all electric motors that generate a voltage caused by retentivity when they are run out.
The UG 6946 measures this voltage induced by residual magnetization at the winding terminals. For this purpose, 2 redundant measuring channels (L2 against L1 and L3 against L1) are used. Goes the induction voltage
At both channels simultaneously against 0, this means that the motor stops and the output relay is activated for the device. In order to be able to adapt the device to a wide range of motors and applications,the voltage threshold U below which the UG 6946 detects the standstill can be set. The time period can also be set.
Must be undershot for the U at so that the standstill is finally detected and the output circuit is enabled (standstill time ts).
In addition, the device detects wire breaks at the measuring inputs L1 / L2 / L3. If a wire break is detected, the output relay goes to the safe position (as with the engine running). This status is saved and can be deleted by jumpers of terminals X3 - X2. In addition, the measuring signals of both channels are constantly compared. If the signals are different for longer than approx. 2.5 s, the simultaneity error is triggered. This error is reset if both channels receive sufficient signal voltages at the same time.
Terminals X1-X2 are available for a feedback circuit for monitoring externally connected contactors for contact amplification (NC contact). If the feedback circuit is not required, the must be
·
Perf. Level (PL) e and category 4 according to EN ISO 13849-1, EN 61800-5-2
SIL CLAIM LIMIT (SIL CL) 3 · according to IEC/EN 62061
Safety Integrity Level (SIL) 3 · according to IEC/EN 61508, IEC/EN 61511 and EN 61800-5-2
· Safe standstill monitoring of 3- and 1-phase motors
· No external initiators required
· Independant of direction of rotation
· Wire break detection in the measuring circuit
· positively driven safety output contacts:
2 NO contacts for 250 V AC
1 NC contact for 24 V DC
· adjustable voltage threshold
· adjustable standstill time
· LED displays for motor standstill, wire break and operating voltage
· suitable for use with frequency converters
Possibility to bypass standstill monitoring (muting)
· 22.5 mm width
This text is machine translated.
The standstill monitor UG 6946 is suitable for detecting the standstill of all electric motors that generate a voltage caused by retentivity when they are run out.
The UG 6946 measures this voltage induced by residual magnetization at the winding terminals. For this purpose, 2 redundant measuring channels (L2 against L1 and L3 against L1) are used. Goes the induction voltage
At both channels simultaneously against 0, this means that the motor stops and the output relay is activated for the device. In order to be able to adapt the device to a wide range of motors and applications,the voltage threshold U below which the UG 6946 detects the standstill can be set. The time period can also be set.
Must be undershot for the U at so that the standstill is finally detected and the output circuit is enabled (standstill time ts).
In addition, the device detects wire breaks at the measuring inputs L1 / L2 / L3. If a wire break is detected, the output relay goes to the safe position (as with the engine running). This status is saved and can be deleted by jumpers of terminals X3 - X2. In addition, the measuring signals of both channels are constantly compared. If the signals are different for longer than approx. 2.5 s, the simultaneity error is triggered. This error is reset if both channels receive sufficient signal voltages at the same time.
Terminals X1-X2 are available for a feedback circuit for monitoring externally connected contactors for contact amplification (NC contact). If the feedback circuit is not required, the must be
·
Perf. Level (PL) e and category 4 according to EN ISO 13849-1, EN 61800-5-2
SIL CLAIM LIMIT (SIL CL) 3 · according to IEC/EN 62061
Safety Integrity Level (SIL) 3 · according to IEC/EN 61508, IEC/EN 61511 and EN 61800-5-2
· Safe standstill monitoring of 3- and 1-phase motors
· No external initiators required
· Independant of direction of rotation
· Wire break detection in the measuring circuit
· positively driven safety output contacts:
2 NO contacts for 250 V AC
1 NC contact for 24 V DC
· adjustable voltage threshold
· adjustable standstill time
· LED displays for motor standstill, wire break and operating voltage
· suitable for use with frequency converters
Possibility to bypass standstill monitoring (muting)
· 22.5 mm width
This text is machine translated.