Safety technique. Emergency stop module BO 5988 safemaster
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1 Safety technique Emergency stop module BO 5988 safemaster Function diagram Pushbutton on Mains or emergencystop () K1 According to EC Directive for machines 98/37/EG According to IEC/E Safety category 4 according to E Output max. 6 O, 1 C s or 1 O for AC 250 V Optionally with release delayed O to 10 min 1-channel or 2-channel connection Line fault detection at pushbutton Optionally automatic function after connection of operating voltage or activation via pushbutton Optionally cross fault detection in emergency stop control circuit Optionally dual voltage version Feedback circuit - for monitoring external ors Integrated short-circuit and overvoltage protection Optionally with protective seperation to IEC/E 60 0, IEC/E LED displays for channels 1 and 2 and supply Removable terminal strips Wire connection also 2 x 1,5 mm 2 stranded ferruled (isolated), DI /-2/-3-4 or 2 x 2,5 mm 2 stranded ferruled DI /-2/-3 Width 100 mm Approvals and marking K2 M 6800 Short-circuit detection at pushbutton ET Applications Canada Canada / USA see variants Block diagram Protection of people and machines Emergency stop circuits on machines Monitoring of safety gates A4 /A3 S Indication Overvoltage and short circuit protection V... K1 K2 & Monitoring logic K2 K3 K2 K3 LED power supply LED K2 LED K3 only at BO 5988/4, BO 5988/5 LED KT2, KT3 ote on, when operating voltage present on, when supply on relay K2 on, when supply on relay K3 on, when delayed s are energised Mains K2 K3 S M6801_a Safety category 4 according to E only at applications with cross fault detection. At delayed s Safety category 3 according to E for delays up to 30 s max. For longer delays category 1. In applications at category 4 (DI E 954-1) with outputs the safety functions have to be tested at least once a month. Circuit diagrams A3 S S A4 A3 S S A4 A3 S S A4 S22 K2 S K3 /A S22 S K2 K3 /A t v 78 S22 S K2 K3 /A PE PE 78 PE M 7172 M 7173 BO BO M 7174 All technical data in this list relate to the state at the moment of edition. We reserve the right for technical improvements and changes at any time. 1 BO 5988 / e
2 otes Jumper assignment for functions Activation via pushbutton / or automatic function push- Jumper Function button - - M8687 Technical data Input The output s are switches only after operation of the pushbutton. Line fault monitoring at the pushbutton Automatic function for operating voltage / or after emergency stop release Line fault detection at the pushbutton The output s cannot be closed if the pushbutton is already closed before the voltage is applied to, S22 (also in the event of a line fault at the pushbutton). A line fault at the pushbutton which occures after activation of the device is recognized when swichting-on takes place again and closing of the output s is then prevented. If a line fault occurs at the pushbutton after the voltage is already present at, S22, undesired activation will take place, because this line fault does not differ from the normal closing function. The gold-plated s of the BO 5988 also mean that this module is suitable for switching small loads of 1 mva... 7 VA, 1 mw... 7 W in the range 0, V, ma. The s also permit the maximum switching current. However, since the gold plating is burnt off at this current level, the device is no longer suitable for switching small loads after this. The PE terminal permits operation of the device in IT systems with insulation monitoring and also serves as a reference point for testing the control voltage. The internal short-circuit protection will be bridged on DC devices, if the protective ground is connected to terminal PE. e or more extension modules B 3081 or external ors with positively-driven s may be used to multiply the number of s of the emergency stop module BO ATTETIO - AUTOMATIC START! According to IEC/E part it is not allowed to restart automatically after emergency stop. Therefore the machine control has to disable the automatic start after emergency stop. ominal voltage U BO /-00 DC V BO /- DC V 1) + AC V 2) DC V 1) + AC 48 V 2) DC V 1) + AC 110 V 2) DC V 1) + AC 0 V 2) DC V 1) + AC 0 V 2) 1) at terminals A3-A4 2) at terminals - Voltage range AC 0,8... 1,1 U at 10 % residual ripple DC 0,9... 1,2 U at 48 % residual ripple DC 0,8... 1,1 U ominal consumption AC approx. 6 VA, DC approx. 3 W ominal frequency 50 / 60 Hz Control voltage at typ. DC + V at 0 V Control current typ. DC 110 ma Minimum voltage at terminals, S22 DC 21 V with activated device Recovery time 2 s A minimum switch-off time of 20 s must be observed if the line fault monitoring function at the pushbutton is active Technical data Output Contact BO BO BO Operate time manual restart typ. 30 ms automatic restart 1 s Release time opening in secondary circuit (-S22) 30 ms + 50 % opening in supply circuit BO , BO ms + 50 %, BO ms + 50 % 3 O, 1 C indicator 6 O, 1 C indicator 6 O, 1 O indictor 3 O, 1 C indicator 1 O release delayed The O s...63 /...64 are safety s. ATTETIO! The C s 81- or one O can only be used for monitoring. Time delay t v supply is not necessary during elapse of time BO /1 0, s 0, s BO /2 0, s s 1 s, 3 s, 5 s, 10 s supply must be connected during elapse of time BO /4 0, s 0, min 0, s 0, min s 0, min s min BO /5 Repeat accuracy BO /1 and BO /2 BO /4 and BO /5 Contact type ominal output voltage 1 s, 3 s, 10, 30 s 1 min, 3 min, 5 min, 10 min + 15 % of setting value + 1 % of setting value Relay, positively-driven AC 250 V DC see limit curve for arc-free operation Signalling of and BO AC V, DC V for AC/DC 0, A Thermal current I th see total current limit curve (max. 10 A in one path) release delayed O at BO max. 8 A Switching capacity to AC 15 O 5 A / AC 0 V IEC/E C 2 A / AC 0 V IEC/E BO release delayed O 3 A / AC 0V IEC/E to DC O 4 A / DC V IEC/E C 4 A / DC V IEC/E to DC C 10 A / V > ,4 s, 9,6 s Electrical life to AC 15 at 2 A, AC 0 V 10 5 switching cycles IEC/E to DC at 2 A, AC 0 V > 0 x 10 3 switching cycles IEC/E Permissible operating frequency 600 switching cycles / h Short circuit strength max. fuse rating 6 A gl IEC/E max. line circuit breaker C 10 A Mechanical life 30 x 10 6 switching cycles General data Operating mode Continuous operation Temperature range C 2
3 Technical data Clearance and creepage distances overvoltage category / contamination level 4 kv / 2 IEC EMC Electrostatic discharge 8 kv (air) IEC/E HF irradiation 10 V / m IEC/E Fast transients 2 kv IEC/E Surge voltages between wires for power supply 0,5 kv IEC/E between wire and ground 2 kv IEC/E HF-wire guided 10 V IEC/E Interference suppression Limit value class B E Degree of protection Housing IP 40 IEC/E Terminals IP 20 IEC/E Housing /0 DC V + AC 0 V 50 / 60 Hz Article number stock item Dual voltage version Output 6 O s, 1 C as monitoring Width 100 mm BO /1 DC V + AC 0 V 50 / 60 Hz s Article number stock item Dual voltage version Output 3 O s, 1 C as monitoring, 1 release delayed O With time delay t v to 10 s Width 100 mm Thermoplastic with V0 behaviour according to UL subject 94 Vibration resistance Amplitude 0,35 mm IEC/E frequency Hz Climate resistance 15 / 050 / 04 IEC/E Terminal designation E Wire connection 1 x 4 mm 2 solid or 1 x 2,5 mm 2 stranded ferruled (isolated) or 2 x 1,5 mm 2 stranded ferruled (isolated) DI /-2/-3/-4 or 2 x 2,5 mm 2 stranded ferruled DI /-2/-3 Wire fixing Plus-minus terminal screws M 3,5 box terminal with wire protection Mounting DI rail IEC/E Weight 850 g Dimensions Width x height x depth Standard types 100 x 74 x 121 mm Variants BO /60 with CSA approval BO /61 with UL approval (Canada/USA) supply is not nesseary during elapse of time BO / 1 3 O / 1 C s + t v BO / 2 3 O / 1 C s + t v supply must be connected during elapse of time BO / 4 3 O / 1 C s + t v BO / 5 3 O / 1 C s + t v Without time delay t v BO / 0 3 O / 1 C s / 0 6 O / 1 C s as monitoring BO / 0 6 O / 1 C s as monitoring BO / _00 single voltage model BO / _ dual voltage model / 106 Protective seperation of control and load circuits according to IEC/E 61 0, IEC/E kv / 2 referred to overvoltage category II with basic insulation to IEC of 2,5 kv / 2. / 3 Dual voltage model 0,5 s operate delay with automatic restart BO / s Switching voltage U [V] Ordering example for Variants Characteristics DC V + AC 0 V 50 / 60 Hz ominal frequency ominal voltage Time delay 00 1 nominal voltage 2 nominal votlages 0 without t v without auxiliary supply during time elapse 1 t v 2 t v with auxiliary supply during time elapse 4 t v 5 t v Contacts Type Switching current I [A] M 6732 Limit curve for arc-free operation with resistive load 2 2 I [A] max. 225 limit curve Total current limit curve It is necessary to use the square of the currents in order to obtain a linear limit curve. General formula for determination of the maximum ambient temperature A) Sum of currents 2 per safety = value on scale Σ I 2 (A 2 ) B) Max. ambient temperature T = Cross point of scale Σ I 2 (A 2 ) with limit curve Example 1 A) (4A) 2 + (4A) 2 + (4A) 2 + (4A) 2 + (4A) 2 + (4A) 2 = 96 A 2 (Scale Σ I 2 ) B) Max. ambient temperature T = 43 C (point 1) Example 2 A) (0,5 A) 2 + (1 A) 2 + (2 A) 2 + (1 A) 2 = 6,25 A 2 (Scale Σ I 2 ) B) Max. ambient temperature T = 49 C (point 2) Please note The total current 2 can still be 1,5 A 2 at 50 C, i.e. 0,5 A per safety A) (0,5 A) 2 + (0,5 A) 2 + (0,5 A) 2 + (0,5 A) 2 + (0,5 A) 2 +( 0,5 A) 2 = 1,5 A 2 B) Max. ambient temperature = 50 C 1 2 T [C] M6802_a 3
4 Application examples Application examples E /A3 S22 S s s /A3 S22 S A4 M6803_a A4 M6806_a Two-channel emergency stop circuit without cross fault detection. Activation via pushbutton Jumper - A jumper must be fitted - for the automatic function. The pushbutton is not required. Application examples s Two-pole emergency stop circuit with emergency stop control device in the supply circuit. Application for long emergency stop loops where the control voltage drops below the minimum voltage of 21 V. Attention Single faults (e.g. line faults at the emergency stop control device) are not detected with this external circuit configuration /A3 S22 S /A3 S22 S A4 Two-channel emergency-stop circuit with cross fault detection. Activation via pushbutton Jumper - A jumper must be fitted - for the automatic function. The pushbutton is not required. M6804_a A4 Contact reinforcement by external ors, two-channel. The output s can be reinforced by external ors with positively-driven s for switching currents > 8 A. Functioning of the external ors is monitored by looping the C s into the closing circuit (terminals - ). M6807_a /A3 S22 S s /A3 S22 S A4 M6805_a e-channel emergency stop circuit. This circuit does not have any redundancy in the emergency stop control device circuit. A4 Contact reinformcement by external ors with reduced safety level. M6808_a 4
5 Application examples S1 S2 s /A3 S22 S A4 M6809_a Two-channel monitoring of a safety gate. S1 must not close before S2 5
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