Technical Details Electronically-controlled compact braking system for three-phase asynchronous motors Features Brake for preset time or brake until standstill can be set using the effective value Adjustable braking time 2 braking currents can be set Adjustable monitoring times Monitors the heatsink temperature Brake contactors can switch load-free Remote control facility for braking times and manually controlled brake to standstill. Approvals (UL version) Electrical data Supply voltage AC: 2... 24, 35... 45, 39... 46, 47... 55, 5... 6 V Tolerance 9... % Power consumption Max. 4 VA Switching capability in accordance with EN 6947-4-, /9 Enable contact 8-9 und brake contact -2 AC: 24 V/,... 8 A/9 VA DC: 24 V/,... 5 A/2 W Signalling contacts 3-4, 3-24, 3-34 AC: 24 V/,... 2A/48 VA DC: 24 V/,... 2 A/48 W Contact material AgCdO Contact fuse protection Contacts 8-9 and -2 A quick or 6 A slow Contacts 3-4, 3-24, 3-34 4 A quick or 2 A slow Fuse protection of main current circuit I²t-value of semiconductor (see table) Features 4, 65,, 22, 35, 5 A Adjustment range of the braking current % to maximum Adjustable safety times 4 A, 65 A t V = 39 ms... 5 A t V = 3, s t V2, t V3, t V4 = 95 ms Braking time (monitoring time) for brake for preset time.5... s, 2,... 4 s, 6... 32 s, infinity for brake until standstill 2.5 s, 25 s, 37.5 s, infinity Voltage variation Compensated Remote control connection Potentiometer 47 k W for ext. preset braking time value Potentiometer 47 k W for ext. preset braking time value Pulse duty cycle See diagrams Environmental data Ambient temperature -... +55 C Storage temperature -... +55 C Mechanical data Max. cable cross section ext. conductor 2 x.5 mm 2 or x 2.5 mm 2 Single-core or multi-core with crimp connector Torque setting for terminals.6 Nm Dimensions (H x W x D) Standard version 85 x 65 x 58 mm UL-version 39 x 65 x 58 mm Weight Standard version max. 3.4 kg UL-version max. 4.9 kg (Description see next page) Pilz GmbH & Co., Felix-Wankel-Straße 2, 7376 Ostfildern, Deutschland Telefon +49 (7 ) 34 9-, Telefax +49 (7 ) 34 9-33, E-Mail: pilz.gmbh@pilz.de NSG-D-2-24-/
Description The control and power sections of the compact brake are located on a heatsink enclosed within a plastic housing. There are versions available for 5 AC voltage ranges, with each voltage range having the option of 6 braking currents. Features: Gentle start to braking process Block diagram monitoring Automatic reset or mains reset, set via jumpers LEDs Brake for preset time: The motor comes to a standstill within a preset braking time or the braking process is stopped manually by switching off the supply voltage (braking time infinite). Brake until standstill: The braking process ends when the motor is at standstill. As the braking process begins, a monitoring time is started - set via a jumper - if this time is exceeding it will cause the braking process to be interrupted. The braking process can be monitored externally (monitoring time infinite). 6 7 8 9 2 3 4 24 34 B A K K3 K4 -SP J B_ART J Control logic Temperature monitoring K K4 Standstill monitoring K3 Timing circuit t B control and brake monitoring, trigger circuit 2 L + +/- Power supply W Z Z2 X3 Y2 Y U V Braking time Pilz GmbH & Co., Felix-Wankel-Straße 2, 7376 Ostfildern, Deutschland Telefon Z +49 X2(7 ) X3 Z Z2 34 9-, Telefax +49 (7 ) 34 9-33, E-Mail: pilz.gmbh@pilz.de Z 8 9 6 S X3 NSG-D-2-24-/ Z K m S Z2 L N 7 Z2 Z2 Second braking time Remote-controlled braking time (47 k W) Manually-controlled braking time Manually-interrupted braking time
Timing diagram for brake for preset time (L-) Enabler (8-9) Motor contactor Start contact (6-7) Brake contactor (-2) Over-temperature (3-24) t t 2 t V t V2 t 3 t V3 t V4 t 4 t Enabler to terminal 8-9 t 2 Motor on Braking time t 3 t 4 Overtemperature t V... t V4 Safety times Timing diagram for brake until standstill (L-) Enabler (8-9) Motor contactor Start contact (6-7) Brake contactor (-2) Motor standstill Monitoring time exceeded Standstill detected (3-9) t t 2 t V t V2 t 3 t 4 t V3 t V4 t 5 t Enabler to terminal 8-9 t 2 Motor on Braking time t 3 t 4 Braking time overrun t 5 Monitoring time exceeded t V... t V4 Safety times Fuse protection for main current circuit via semiconductor fuses Max. fuse protection I²t-value [A²s] 5 A 4 A 8 8 A 65 A 4 25 A A 25 A 22 A 3 4 A 35 A 96 5 A 5 A 92 Pilz GmbH & Co., Felix-Wankel-Straße 2, 7376 Ostfildern, Deutschland Telefon +49 (7 ) 34 9-, Telefax +49 (7 ) 34 9-33, E-Mail: pilz.gmbh@pilz.de NSG-D-2-24-/
Pulse duty cycle Without heatsink cover With heatsink cover :8 TV 5 A :2 :8 T V 5 A 5 A, IB = 4 A 22 A : : 22 A 35 A : 35 A :6 :5 65 A, A :6 :5 65 A, A : 25 4 55 4 A J/ C : 25 4 55 4 A J/ C Connection example, 3-phase asynchronous motor with star-delta circuit L L3 N F K F2 F3 F5 F6 F7 2 8 9 3 4 24 34 6 7 Y Y2 Z Z2 X3 W K L U V F4 S S K K U V W M3~ K PE Pilz GmbH & Co., Felix-Wankel-Straße 2, 7376 Ostfildern, Deutschland Telefon +49 (7 ) 34 9-, Telefax +49 (7 ) 34 9-33, E-Mail: pilz.gmbh@pilz.de NSG-D-2-24-/
Connection example, 3-phase asynchronous motor with star-delta circuit L L3 N F K F2 F3 F5 F6 F7 2 8 9 3 4 24 34 6 7 Y Y2 Z Z2 X3 W L U V K K4 F4 S K3 K K3 U VW W2 V2 U2 M3~ S K K4 K K3 K4 PE Pilz GmbH & Co., Felix-Wankel-Straße 2, 7376 Ostfildern, Deutschland Telefon +49 (7 ) 34 9-, Telefax +49 (7 ) 34 9-33, E-Mail: pilz.gmbh@pilz.de NSG-D-2-24-/
General Details Unless stated otherwise in the technical details for the specific unit. Electrical data AC frequency range 5... 6 Hz DC residual ripple 6 % Contact material AgSnO 2 Continuous duty % Environmental data EMC EN 5 8-, /92; EN 5.82-2, 3/95 Vibration in accordance with EN 668-2-6, 4/95 Frequency:... 55 Hz, Amplitude:.35 mm Climatic suitability IEC 68-2-3, 8/84 Airgap creepage DIN VDE -, 4/97, 4 kv/3 Ambient temperature -... +55 C Storage temperature -4... +85 C Mechanical data Housing material Thermoplastic Noryl SE Protection types Mounting: IP 54 Housing: IP 4 Terminals: IP 2 Order references key Supply voltage Order references Type Order no. 2... 24 VAC 4 A 496 75 35... 45 VAC 4 A 496 75 39... 46 VAC 4 A 496 752 47... 55 VAC 4 A 496 753 5... 6 VAC 4 A 496 754 2... 24 VAC 65 A 496 76 35... 45 VAC 65 A 496 76 39... 46 VAC 65 A 496 762 47... 55 VAC 65 A 496 763 5... 6 VAC 65 A 496 764 2... 24 VAC A 496 77 35... 45 VAC A 496 77 39... 46 VAC A 496 772 47... 55 VAC A 496 773 5... 6 VAC A 496 774 2... 24 VAC 22 A 496 78 35... 45 VAC 22 A 496 78 39... 46 VAC 22 A 496 782 47... 55 VAC 22 A 496 783 5... 6 VAC 22 A 496 784 2... 24 VAC 35 A 496 79 35... 45 VAC 35 A 496 79 39... 46 VAC 35 A 496 792 47... 55 VAC 35 A 496 793 5... 6 VAC 35 A 496 794 2... 24 VAC 5 A 496 795 35... 45 VAC 5 A 496 796 39... 46 VAC 5 A 496 797 47... 55 VAC 5 A 496 798 5... 6 VAC 5 A 496 799 Pilz GmbH & Co., Felix-Wankel-Straße 2, 7376 Ostfildern, Deutschland Telefon +49 (7 ) 34 9-, Telefax +49 (7 ) 34 9-33, E-Mail: pilz.gmbh@pilz.de NSG-D-2-24-/
Order reference key Supply voltage Order references Type Order no. 2... 24 VAC, UL-Version 4 A 496 85 35... 45 VAC, UL-Version 4 A 496 85 39... 46 VAC, UL-Version 4 A 496 852 47... 55 VAC, UL-Version 4 A 496 853 5... 6 VAC, UL-Version 4 A 496 854 2... 24 VAC, UL-Version 65 A 496 86 35... 45 VAC, UL-Version 65 A 496 86 39... 46 VAC, UL-Version 65 A 496 862 47... 55 VAC, UL-Version 65 A 496 863 5... 6 VAC, UL-Version 65 A 496 864 2... 24 VAC, UL-Version A 496 87 35... 45 VAC, UL-Version A 496 87 39... 46 VAC, UL-Version A 496 872 47... 55 VAC, UL-Version A 496 873 5... 6 VAC, UL-Version A 496 874 2... 24 VAC, UL-Version 22 A 496 88 35... 45 VAC, UL-Version 22 A 496 88 39... 46 VAC, UL-Version 22 A 496 882 47... 55 VAC, UL-Version 22 A 496 883 5... 6 VAC, UL-Version 22 A 496 884 Additional versions available on request Order references Accessories Description Order no. mounting bracket 496 759 Protective cover for and P-93-housing 774 9 Pilz GmbH & Co., Felix-Wankel-Straße 2, 7376 Ostfildern, Deutschland Telefon +49 (7 ) 34 9-, Telefax +49 (7 ) 34 9-33, E-Mail: pilz.gmbh@pilz.de NSG-D-2-24-/