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safety relay unit g9s ideal for safety door and emergency stop switch circuits slim two-pole models only 22.5 mm wide three-pole models only 68 mm wide five-pole models only 91 mm wide off-delay feature in three-pole models incorporates led indicators for monitoring relays uses replaceable fuses finger-protection construction both din track mounting and screw mounting possible (two-pole models) approved standards agency standard file no. bia en60204-1 en954-1 r974021 ul ul508 e95399 csa csa22.2no.14 lr35535 note: be sure to refer to the precautions on page 15. ordering information basic models number of poles main contact form number of input channels rated voltage part number 2 dpst-no 1 channel 24 vdc g9s-2001 dc24 2 channels g9s-2002 dc24 3 (see note.) 3pst-no 2 channels 24 vdc g9s-301 dc24 () 24 vac g9s-301 ac24 120 vac g9s-301 ac120 240 vac g9s-301 ac240 5 (see note.) 5pst-no 24 vdc g9s-501 dc24 () 24 vac g9s-501 ac24 120 vac g9s-501 ac120 240 vac g9s-501 ac240 note: auxiliary contact is spst-nc.
g9s g9s 2 off-delay models number of poles main contact form off-delay form number of input channels off-delay time rated voltage part number 3 3pst-no dpst-no 2 channels 1 s 24 vdc g9s-321-t01 dc24 24 vac g9s-321-t01 ac24 120 vac g9s-321-t01 ac120 240 vac g9s-321-t01 ac240 10 s 24 vdc g9s-321-t10 dc24 24 vac g9s-321-t10 ac24 120 vac g9s-321-t10 ac120 240 vac g9s-321-t10 ac240 30 s 24 vdc g9s-321-t30 dc24 24 vac g9s-321-t30 ac24 120 vac g9s-321-t30 ac120 240 vac g9s-321-t30 ac240 note: each model has an spst-nc auxiliary contact. specifications ratings controller block part number rated voltage rated current rated power consumption g9s-2001 g9s-2002 24 vdc 66 ma 20% approx. 1.6 w g9s-301 24 vdc 62.5 ma 20% approx. 1.5 w 24 vac 125 ma 20% approx. 3 va (60 hz) 120 vac 25 ma 20% () 240 vac 12.5 ma 20% g9s-501 24 vdc 127 ma 20% approx. 3 w 24 vac 229.2 ma 20% approx. 5.5 va (60 hz) 120 vac 45.8 ma 20% () 240 vac 22.9 ma 20% g9s-321-t 24 vdc 150 ma 20% approx. 3.6 w g9s 3 24 vac 256.2 ma 20% approx. 6.1 va (60 hz) 120 vac 50.8 ma 20% () 240 vac 25.4 ma 20% note: the above ratings are at an ambient temperature of 23 c.
g9s g9s 3 contact part number g9s-301 g9s 501 g9s-2001 g9s 2002 g9s-501 g9s-321-t g9s-2002 rated load 3 a at 240 vac; (see note.) cos f = 0.4 5 a at 240 vac; cos f = 0.4 ac15 (iec-947-5-1/ table 4) 3 a at 240 vac; cos f = 0.3; 6,050 operations dc13 (iec-947-5-1/ table 4) 1 a at 24 vdc; l/r=100 ms; 6,050 operations rated carry current 5 a max. switching voltage 250 vac, 24 vdc max. switching capacity ac: 1,250 va; dc: 120 w min. permissible load 50 ma at 24 vdc (operating frequency: 60 operations/min.) note: if the load is 5 a at 240 vac, the service life will be 40,000 times.
g9s g9s 4 characteristics part number g9s-2001 g9s-2002 g9s-301 g9s-501 g9s-321-t input voltage/frequency 24 vdc 10%, 50/60 hz 24 vdc - 15% 10%, 50/60 hz; 24 vac - 15% 10% 50/60 hz; 120 vac - 15% 10%, 50/60 hz; 240 vac -15% 10%, 50/60 hz fuse protection --- 0.4 a contact form of safety circuit dpst-no 3pst-no 5pst-no 3pst-no contact form of auxiliary circuit --- spst-nc spst-nc spst-nc contact form of safety off-delay circuit --- dpst-no contact resistance 200 m w 300 m w max. (measurement conditions: 5 vdc, 10 ma, voltage drops.) operate time (rated voltage operation, dtildb 50 ms 300 ms max. 300 ms release time (g, does not include bounce time) 50 ms 100 ms max. 100 ms; off-delay: 1 s, 10 s, 30 s max. switching f mechanical 1,800 operations/hr g frequency rated load 1,800 operations/hr insulation resistance (at 500 vdc) 100 m w min. between control circuit and the safety and auxiliary circuits, between the safety circuits and auxiliary circuits, and between safety circuits rated insulation voltage p.d. 3 (outside), p.d. 2 (inside) (iec664-1, din vde 0110/'89) 250 v rated impulse withstand voltage overvoltage category 3 (iec664-1, din vde 0110/'89) 4 kv dielectric strength 2,500 vac (50/60 hz for 1 min.) between control circuit and the safety and auxiliary circuits, between the safety circuits and auxiliary circuits, and between safety circuits vibration resistance mechanical 10 to 55 hz, 0.75-mm double amplitude res i stance (iec68-2-6) electrical 10 to 55 hz, 0.5-mm double amplitude shock resistance (iec68 2 27) mechanical 300 m/s 2 (approx. 30g) for 11 ms (iec68-2-27) electrical 50 m/s 2 (approx. 5g) for 11 ms minimum applicable load (p standard reference value) 24 vdc, 50 ma ambient tt operating 25 c to 55 c (13 f to 131 f) temperature storage 25 c to 55 c (13 f to 131 f) relative humidity operating 38% to 85% rh y storage 38% to 85% rh enclosure rating (iec529) terminals ip20 g (iec529) enclosure ip40 terminal tightening torque 10 kgf cm (0.98 n m) weight (see note.) approx. 180 g approx. 365 g approx. 550 g approx. 580 g approved standards ul508, csa22.2 no. 14, en954-1, en60204-1 emc emi: en55011 group 1 class a ems: en50082-2 note: these weights are for dc models. ac models are 200 g heavier.
g9s g9s 5 life expectancy mechanical life 1,000,000 operations min. with a switching frequency of approx. 1,800 operations/h electrical life 100,000 operations min. at the rated load with a switching frequency of approx. 1,800 operations/h life expectancy curve (240 vac, cos 0.4 , cos = 1) contact current (a) life expectancy (x10 operations) 4 g9s (three-pole and five-pole models g7s g9s (two- pole models) operation g9s-2001 with single-channel manual-reset emergency stop switch input feedback loop emergency stop switch s1 limit switch s2 k1 and k2 (nc) k1 and k2 (no) km1 and km2 (nc) km1 and km2 (no) timing chart s1: limit switch s2: starter switch km1 and km2: magnet contactor m: 3-phase motor
g9s g9s 6 g9s-2001 with single-channel auto-reset limit switch input feedback loop limit switch s1 k1 and k2 (nc) k1 and k2 (no) km1 and km2 (nc) km1 and km2 (no) timing chart s1: safety limit switch with positive opening mechanism (d4d and d4b) km1 and km2: magnet contactor m: 3-phase motor g9s-2002 with 2-channel manual-reset emergency stop switch input feedback loop emergency stop switch s1 limit switch s2 k1 and k2 (nc) k1 and k2 (no) km1 and km2 (nc) km1 and km2 (no) timing chart s1: emergency stop switch with positive opening mechanism s2: starter switch km1 and km2: magnet contactor m: 3-phase motor
g9s g9s 7 g9s-2002 with 2-channel auto-reset limit switch input feedback loop limit switch s1 k1 and k2 (nc) k1 and k2 (no) km1 and km2 (nc) km1 and km2 (no) timing chart s1: limit switch s2: safety limit switch with positive opening mechanism (d4d and d4b) km1 and km2: magnet contactor m: 3-phase motor g9s-301 (24 vdc) with 2-channel limit switch input feedback loop s1: limit switch s2: safety limit switch with positive opening mechanis m (d4d and d4b) s3: starter switch km1 and km2: magnet contactor km3: g3j solid-state contactor m: 3-phase motor open limit switches s1 and s2 starter switch s3 k3 (nc) k3 (no) k1 and k2 (nc) k1 and k2 (no) km1 and km2 (nc) km1 and km2 (no) pc input pc output km3 timing chart
g9s g9s 8 g9s-501 (ac model) with 2-channel limit switch input feedback loop s1: limit switch s2: safety limit switch with positive opening mechanism (d4d and d4b) s3: starter switch km1 and km2: magnet contactor m: 3-phase motor open timing chart limit switches s1 and s2 starter switch s3 k3 (nc) k3 (no) k1 and k2 (nc) k1 and k2 (no) k4 and k5 (nc) k4 and k5 (no) km1 and km2 (nc) km1 and km2 (no)
g9s g9s 9 g9s-321-t (24 vdc) with 2-channel limit switch input feedback loop s1: limit switch s2: safety limit switch with positive opening mechanism (d4d and d4b) s3: starter switch km1 and km2: magnet contactor m: 3-phase motor operation instruction motor controller off-delay timer open timing chart limit switches s1 and s2 starter switch s3 k3 (nc) k3 (no) k1 and k2 (nc) k1 and k2 (no) k4 and k5 (nc) k4 and k5 (no) km1 and km2 (nc) km1 and km2 (no) operation instruction motor rotation off-delay time
g9s g9s 10 g9s-301 (24 vdc) with 2-channel emergency stop switch input feedback loop s1: emergency stop switch s2: starter switch km1 and km2: magnet contactor km3: g3j solid-state contactor m: 3-phase motor emergency stop switch s1 starter switch s2 k3 (nc) k3 (no) k1 and k2 (nc) k1 and k2 (no) km1 and km2 (nc) km1 and km2 (no) pc input pc output km3 timing chart g9s-501 (ac) with single-channel emergency stop switch input feedback loop s1: emergency stop switch s2: starter switch km1 and km2: magnet contactor m: 3-phase motor emergency stop switch s1 starter switch s2 k3 (nc) k3 (no) k1 and k2 (nc) k1 and k2 (no) k4 and k5 (nc) k4 and k5 (no) km1 and km2 (nc) km1 and km2 (no) timing chart
g9s g9s 11 g9s-321-t (24 vdc) with single-channel limit switch input feedback loop s1: safety limit switch with positive opening mechanis (d4d and d4b) s2: starter switch km1 and km2: magnet contactor m: 3-phase motor operation instruction motor controller off-delay timer open limit switches s1 starter switch s2 k3 (nc) k3 (no) k1 and k2 (nc) k1 and k2 (no) k4 and k5 (nc) k4 and k5 (no) km1 and km2 (nc) km1 and km2 (no) operation instruction motor rotation off-delay time timing chart
g9s g9s 12 g9s-301 (24 vdc) with 2-channel auto-reset limit switch input feedback loop s1: limit switch s2: safety limit switch with positive opening mechanism (d4d and d4b) km1 and km2: magnet contactor m: 3-phase motor open limit switches s1 and s2 (nc) limit switches s1 and s2 (no) k3 (nc) k3 (no) k1 and k2 (nc) k1 and k2 (no) km1 and km2 (nc) km1 and km2 (no) timing chart dimensions unit: mm (inch) g9s-2001 g9s-2002 101 max. (3.98) 76 max. 111 max. (4.37) 23 max (22.5). twelve, m3.5 4.6 dia. (see note.) note: this is an average value 92 (3.62)
g9s g9s 13 g9s-301 76 max. (2.99) 68 max. (2.68) eighteen, m3.5 92 (3.62) 111 max. (4.37) 61.2 56 5.9 7 g9s-321-t g9s-501 91 max. (3.58) twenty-four, m3.5 92 (3.62) 76 max. (2.99) 111 max. (4.37) 63 5.9 80 10 7
g9s g9s 14 installation internal connections g9s-301 (24 vdc) g9s-301 (ac model) g9s-2001 g9s-2002 g9s-501 (24 vdc) g9s-501 (ac model) g9s-321-t (24 vdc) g9s-321-t (ac model) off-delay timer off-delay timer
g9s g9s 15 precautions wiring be sure to turn off the g9s before wiring the g9s. do not touch the terminals of the g9s while the power is turned on because the terminals are charged and may cause an electric shock. use the following to wire the g9s. strand wire: 0.75 to 1.5 mm 2 16 to 18 awg steel wire: 1.0 to 1.5 mm 2 16 to 18 awg tighten each screw to a torque of 0.78 to 1.18 n m (8 to 12 kgf cm), or the g9s may malfunction or generate heat. external inputs connected to t11 and t12 or t21 and t22 of the g9s-301 must be no-voltage contact inputs. pe is a ground terminal. when a machine is grounded at the positive, the pe terminal should not be grounded. mounting multiple units if the output current is 3 a or more, make sure that there is a minimum distance of 50 mm (1.97 in) each between all adjacent g9s units. (24-vdc models do not require this spacing.) 50 mm min. (1.97) fuse replacement three- and five-pole models the power input circuit of the g9s includes a fuse to protect the g9s from damage that may be caused by short-circuiting. the fuse is mounted to the side panel. use the following type of fuse as a replacement. littel fuse 218.4 (rated current 0.4 a), iec127 approval. use a flat-blade screwdriver to remove the fuse cover. be sure to turn off the g9s before replacing the fuse. fuse applicable safety category (en954-1) all g9s-series relays fall under safety category 4 of en954-1 except the g9s-32i-t and g9s-2001. the g9s-32i-t has an off-delay output block falling under safety category 3 and g9s-2001 falls under safety category 1. the above is provided according to circuit examples presented by omron. therefore, the above may not apply to all operating environments. the applicable safety category is determined from the whole safety control system. make sure that the whole safety control system meets en954-1 requirements. wire the g9s-2001 or g9s-2002 for auto-reset. if either one of them is connected to a manual-reset switch, en954-1 requirements will not apply. safety category 4 of en954-1 wire the g9s-2001 or g9s-2002 for auto-reset. if either one of them is connected to a manual-reset switch, en954-1 requirements will not apply. apply 2-channel external input to the t11 and t12 terminals and t21 and t22 terminals through switches each incorporating a force-separation mechanism. if limit switches are used, make sure that at least one of them incorporates a force-separation mechanism. refer to application examples and input a signal for the normally-closed contact of the contactor (i.e., input to x1 of the g9s-301, x2 of the g9s-501, or x2 of the g9s-321-t). be sure to ground the pe terminal. if the relay is operating with dc, the power supply may be grounded instead.
g9s g9s cat. no. cedsax3 10/99 specifications subject to change without notice. printed in u.s.a. omron electronics, inc. one east commerce drive schaumburg, il 60173 note: dimensions shown are in millimeters. to convert millimeters to inches divide by 25.4. 1-800-55-omron omron canada, inc. 885 milner avenue scarborough, ontario m1b 5v8 416-286-6465

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