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Emergency Stop www..com
Type BO 5988 safemaster
Relay
Features
* Category 3 or 4 * Contacts (5 m gold plated) .61 - 6 N/O, 1 N/C .47 - 3 N/O, 1 N/C, 1 N/O delayed release * Removable terminal strips for fast replacement * Internal auxiliary power supply protection with auto-reset * Dual voltage AC and 24V DC power supply * Link programmable Single or dual channel operation Auto or manual reset Short circuit/link monitoring of Estop and reset pushbutton circuits
Models BO 5988.61, BO 5988.47
CANADA
USA
Technical Committee of Electrical Engineering
Typical Schematic Diagram
Description
BO 5988.61 Category 3 applications
Fit links S21 - S23 X1 - X2
L
Emergency Stop RelayT BO 5988 complies fully with the ype requirements of the standard specifications referred to on page 3 of this publication. It is a derivative of models BN 5983 / BD 5987 utilising fail-safe control logic to offer greatly extended control capability within a compact 100 mm wide DIN rail mounted enclosure.
OFF
EMERG. STOP
A4 S11 A1 A3(+) S12 S21 S23 S22 S12 13 23 33 43 53 63 81 (-)
Circuit Connections
LOGIC
K2 K3
ON RESET
Y1 Y2
PE (-)
X1
X2 X5 X6
14 24 34 44 54 64 82 A2
N
Diag 1
BO 5988.61 with External contactors. This diagram shows how external contactors with positive guided contacts C1 and C2 can be used to reinforce the switching capacity of BO 5988.61 with continued redundancy
L
The adjacent circuit (diag. 1) is for standard 2 channel input, manual reset operation. The OFF and the EMERGENCY STOP buttons are connected in series between terminals S11/A3(+) and S12/S22. The ON/button Button is connected between terminals Y1 and Y2. The a.c. auxiliary supply is connected to terminals A1 and A2. If a 24V d.c. auxiliary supply is used it should be connected to terminals S11/A3(+) and A4(-). The circuits to be tripped are connected to terminals 13-14, through to 63-64. Terminals 81-82 are dedicated to remote signalling and must not be used for direct control purposes. The bridges across S21/S23 and X1/X2 are left in place unless another mode of operation is required. (see diags 2, 3 and 4). For additional security an insulation monitoring relay may be connected to monitor terminal PE(-) to ground. (Details on request). When used with cross fault monitoring of the EStop button circuit diagram 3, this relay is suitable for Category 4 applications.
OFF C1.2
EMERG. STOP
S11 A4 A1 A3(+) S12 S21 S23 S22 S12 13 23 33 43 53 63 81 (-) C2.2
Indication
LOGIC
K2 K3
The relay is equipped with three green LEDs. When illuminated they indicate the healthy condition of the auxiliary supply and circuits K2-K3.
X2 X5 X6 C1.1 C2.1 C1 C2 14 24 34 44 54 64 82 A2
ON RESET L
Y1 Y2
PE (-)
X1
N
Diag 2
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Emergency www..com Stop
Type BO 5988 safemaster
Relay
Additional Infomation
Dimensions
*
* * *
*
BO 5988 provides short circuit protection of the reset button. If terminals Y1-Y2 are continuously linked the relay will not re-energise in the event of Emergency Stop Button reset or restoration of the auxiliary supply. Automatic reset facility is enabled by linking terminals X5-X6. NB. There will be a 900 ms delay on reset. Terminals 81-82 are for remote signalling, e.g. to a PLC. If additional control contacts are required the Relay BO 5988 may be used in conjunction with one or more extension modules type BG 5929 / BN 3081 (diag. 7). Model BO 5988 can be supplied with an integral timed delayed release contact but this does limit the number of contacts available (see BO 5988.47). Model BO 5988.61 may also be used with the time delay modules BG 7925, IL 7824, IN 7824 and BA 7924 described on (page 49-51).
Schematic Diagram
Weight 0.85 Kg
BO 5988.61 with cross fault monitoring of EStop pushbuttons Category 4 Applications
L a
BO 5988.48 3 N/O, 1 N/C - see also BD 5935.48
L
Fit links S12-S22 X1-X2 Auto reset
b
EMERG. STOP
Possible Fault Paths a b
OFF
EMERG. STOP A4 81 (-)
S11 A1 A3(+) S12 S21 S23 S22 S12 13 23 33
LOGIC
ON RESET Y1 Y2 PE (-)
S11 A4 A1 A3(+) S12 S21 S23 S22 S12 13 23 33 43 53 63 81 (-)
K2 K3
LOGIC
K2 K3
X1
X2
X5 X6
14 24 34
82 A2
ON RESET
Y1 Y2
PE (-)
X1
X2 X5 X6
14 24 34 44 54 64 82 A2
N
N
Diag 5 Diag 5 Diag 3
BO 5988.47 3 N/O, 1 N/C, 1 N/O adj. timed delayed release contact BO 5988.61 As safety gate monitor Category 3 applications
L S1
L
OFF
EMERG. STOP A4 77 81 (-)
S11 A1 A3(+) S12 S21 S23 S22 S12 13 23 33
Fit links S21-S23 X1-X2 Auto reset is achieved by linking X5-X6
S2
ON RESET
LOGIC
Y1 Y2 PE (-)
Gate Closed
K2 K3
S11 A4 A1 A3(+) S12 S21 S23 S22 S12 13 23 33 43 53 63 81 (-)
X1
X2
X5 X6
14 24 34
78 82 A2
LOGIC
K2 K3
N
Diag 6
Y1 Y2 N
PE (-)
X1
X2
X5 X6
14 24 34 44 54 64 82 A2
Special Note
Diag 4
(Diag 1) It is recommended that redundancy is carried through to the EMERGENCY STOP button by using a dual contact button as shown. If a single contact button is used then terminals S12 and S22 should be bridged. (Category 2 applications only)
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Emergency Stop www..com
Type BO 5988 safemaster
Relay
BO 5988.61 with BN 3081 Extension modules
+24V
OFF
EMERG. STOP
A4 S11 A1 A3(+) S12 S21 S23 S22 S12 13 23 33 43 53 63 81 (-)
A1 A3 13 23 33 43 53 63 73 81
A1 A3 13 23 33 43 53 63 73 81
LOGIC
K2 K3
K1 K2
K1 K2
ON RESET Y1 Y2 PE (-) X1 X2 X5 X6 14 24 34 44 54 64 82 A2 A2 A4 14 24 34 44 54 64 74 82 A2 A4 14 24 34 44 54 64 74 82
0V
BO 5988.61
BN 3081
BN 3081
Diag 7
Specifications
Nominal Voltage (Vn)
24V dc (Terminals S11/A3(+) and A4(-)) all versions Plus ac voltages (terminals A1, 24V, 48V, 110V, 127V, 230V, <5VA ac/3W dc 0*8-1*1 Vn ac 0.9-1.2 Vn dc 50 to 60Hz 5% 24V dc 18*5V dc (S12, S22) 5 m gold plated (see versions) 10A ac (Cos o 1-0*7) 10A dc see page 84 see page 84 30 x 106 operations see page 84 AC15, 6A, 250V ac DC13, 6A, 24V dc 0*1- 60V, 1- 300mA 250V ac, 250 Vdc 2500VA (AC1)/240W dc 6000 operations/hour 110 S11/ S12-S22 Dual Channel Operation X1-X2, 137 0*1-1s, 0*3-3s, 0*5-5s, 1-10s adjustable to 10min 1s, 3s, 5s, 10s Manual reset 100ms Auto reset 900ms ESTOP<20ms -15C...+50C at 90% R.H. Case IP40 Terminals IP20 2*5Kv 1 minute Amplitude 0.35mm Frequency 10-55Hz (5g @ 50Hz) Thermoplastic Vo rating UL94 1x4mm2 solid 2 x 2*5mm2 solid 1 x 2*5mm2 stranded ferruled 1 x 1*5mm2 stranded * * * * * *
BO 5988.61 used as a light barrier monitor and or safety mat monitor with cross fault monitoring of the safety contacts and link monitoring of the reset circuit.
L
A2) (N.B. a.c. voltage to be specified) Burden Voltage Tolerance Frequency Control Voltage (S11/A3(+)) Min. Return Voltage Contacts Max Switching Capacity Continuous Current Rating Contact Life Mechanical Contact Life Electrical Derated Capacity (for Heavy Inductive Loads) Min Switching Voltage & Current Max Switching Voltage Max Switching Power Max Switching Frequency Max Loop Resistance
SAFETY MAT
LIGHT BARRIER
A4 S11 A1 A3(+) S12 S21 S23 S22 S12 13 23 33 43 53 63 81 (-)
LOGIC
ON RESET Y1 Y2 PE (-)
K2 K3
X1
X2
X5 X6
14 24 34 44 54 64 82 A2
N
Diag 8
Versions
Contact Time Delays Model BO 5988.47/1 (adj) Model BO 5988.47/4 Model BO 5988.47/2 (fixed) Reaction times
BO 5988.61/324 6N/O, 1N/C BO 5988.48/024 3N/O, 1N/C BO 5988.47/124 3N/O, 1N/C, 1N/O Adj delayed release. BO 5988.47/424 3N/O, 1N/C, 1N/O Adj delayed release up to 10 mins. BO 5988.47/224 3N/O, 1N/C, 1N/O Fixed delayed release NB Minimum on time for .47/124 version > set time
Operating Temperature Protection Class Test Voltage Shock Loading
Information Required With Order * Model type * Auxiliary supply
Enclosure Material Terminations
Example: Emergency Stop Relay Type BO 5988.61/324 Auxiliary Supply 230V ac/24V dc
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