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Hazardous Location ER Series Motors<br />
ER115 Electrical/Mechanical Specifications<br />
Sinusoidal Commutation Data 1A8 1B8 118 138 158 168 2A8 2B8 238 258 268 338 358 368<br />
Continuous Motor Torque **<br />
Peak Motor Torque<br />
lbf-in (Nm)<br />
lbf-in (Nm)<br />
49.7<br />
(5.61)<br />
99.3<br />
(11.22)<br />
49.7<br />
(5.61)<br />
99.3<br />
(11.22)<br />
50.5<br />
(5.70)<br />
101.0<br />
(11.41)<br />
50.5<br />
(5.70)<br />
101.0<br />
(11.41)<br />
50.6<br />
(5.72)<br />
101.2<br />
(11.44)<br />
Torque Constant (Kt) ** lbf-in/A 5.3 5.3 4.3 8.7 15.7 17.4 5.3 5.3 8.7 15.9 17.4 8.5 15.9 17.6<br />
(+/– 10% @ 80˚C) (Nm/A) 0.60 0.6 0.5 1.0 1.8 2.0 0.6 0.6 1.0 1.8 2.0 1.0 1.8 2.0<br />
Continuous Current Rating A 10.5 10.5 13.0 6.5 3.6 3.2 17.6 17.6 10.8 5.8 5.4 15.4 8.3 7.7<br />
Peak Current Rating A 21.0 21.0 26.0 13.0 7.2 6.5 35.2 35.2 21.6 11.6 10.8 30.8 16.6 15.3<br />
Trapezoidal Commutation Data<br />
Continuous Motor Torque **<br />
Peak Motor Torque<br />
Torque Constant (Kt)<br />
(+/– 10% @ 80˚C)<br />
lbf-in (Nm)<br />
lbf-in (Nm)<br />
lbf-in/A (Nm/A)<br />
47.4<br />
(5.36)<br />
94.8<br />
(10.71)<br />
4.12<br />
(0.47)<br />
47.4<br />
(5.36)<br />
94.8<br />
(10.7)<br />
4.12<br />
(0.47)<br />
48.2<br />
(5.45)<br />
96.4<br />
(10.9)<br />
3.39<br />
(0.38)<br />
48.2<br />
(5.45)<br />
96.4<br />
(10.9)<br />
6.78<br />
(0.77)<br />
48.3<br />
(5.46)<br />
96.7<br />
(10.9)<br />
12.22<br />
(1.38)<br />
Continuous Current Rating A 12.85 12.85 15.90 7.95 4.42 3.97 21.55 21.55 13.23 7.12 6.61 18.88 10.14 9.38<br />
Peak Current Rating A 25.69 25.69 31.81 15.90 8.84 7.95 43.10 43.10 26.46 14.23 13.23 37.76 20.29 18.76<br />
Motor Data<br />
Voltage Constant (Ke) ** Vpk/Krpm 36.1 36.1 29.7 59.4 107.1 118.7 36.1 36.1 59.4 108.4 118.7 58.1 108.4 120.0<br />
(+/– 10% @ 80˚C) Vrms/Krpm 51.1 51.1 42.0 83.9 151.4 167.9 53.1 51.1 83.9 153.3 167.9 82.1 153.3 169.7<br />
Pole Configuration 8 8 8 8 8 8 8 8 8 8 8 8 8 8<br />
Resistance (L-L)(+/– 5% @ 25˚C) Ohms 0.31 0.31 0.20 0.80 2.60 3.21 0.13 0.13 0.34 1.17 1.35 0.20 0.69 0.81<br />
Inductance (L-L)(+/– 15%) mH 4.8 4.8 3.3 13.0 42.4 52.1 2.3 2.3 6.3 21.1 25.3 4.0 13.9 17.1<br />
Armature Inertia lb-in-sec 2 (Kg-cm 2 ) 0.00555 (6.27) 0.00833 (9.42) 0.01112 (12.56)<br />
Mechanical Time Constant (tm) ms 0.85 0.85 0.82 0.82 0.82 0.82 0.53 0.53 0.52 0.54 0.52 0.43 0.42 0.40<br />
Electrical Time Constant (te) ms 15.73 15.73 16.26 16.26 16.34 16.25 18.41 18.41 18.72 18.06 18.72 20.08 20.19 21.16<br />
Damping Constant<br />
Friction Torque<br />
lbf-in/krpm (N-m/krpm)<br />
lbf-in (Nm)<br />
0.21<br />
(0.024)<br />
0.56<br />
(0.063)<br />
0.21<br />
(0.024)<br />
0.56<br />
(0.063)<br />
0.21<br />
(0.024)<br />
0.56<br />
(0.063)<br />
0.21<br />
(0.024)<br />
0.56<br />
(0.063)<br />
0.21<br />
(0.024)<br />
0.56<br />
(0.063)<br />
50.5<br />
(5.70)<br />
100.9<br />
(11.40)<br />
48.2<br />
(5.45)<br />
96.4<br />
(10.9)<br />
13.55<br />
(1.53)<br />
0.21<br />
(0.024)<br />
0.56<br />
(0.063)<br />
83.3<br />
(9.41)<br />
166.6<br />
(18.82)<br />
79.5<br />
(8.99)<br />
159.1<br />
(18.0)<br />
4.12<br />
(0.47)<br />
0.35<br />
(0.040)<br />
1.00<br />
(0.113)<br />
83.3<br />
(9.41)<br />
166.6<br />
(18.82)<br />
79.5<br />
(8.99)<br />
159.1<br />
(18.0)<br />
4.12<br />
(0.47)<br />
0.35<br />
(0.040)<br />
1.00<br />
(0.113)<br />
84.0<br />
(9.49)<br />
168.0<br />
(18.98)<br />
80.2<br />
(9.06)<br />
160.4<br />
(18.1)<br />
6.78<br />
(0.77)<br />
0.35<br />
(0.040)<br />
1.00<br />
(0.113)<br />
82.5<br />
(9.32)<br />
165.0<br />
(18.64)<br />
78.8<br />
(8.90)<br />
157.6<br />
(17.8)<br />
12.37<br />
(1.40)<br />
0.35<br />
(0.040)<br />
1.00<br />
(0.113)<br />
84.0<br />
(9.49)<br />
168.0<br />
(18.98)<br />
80.2<br />
(9.06)<br />
160.4<br />
(18.1)<br />
13.55<br />
(1.53)<br />
0.35<br />
(0.045)<br />
1.00<br />
(0.136)<br />
117.3<br />
(13.25)<br />
234.6<br />
(26.50)<br />
112.0<br />
(12.66)<br />
224.0<br />
(25.3)<br />
6.63<br />
(0.75)<br />
0.40<br />
(0.045)<br />
1.20<br />
(0.136)<br />
117.6<br />
(13.29)<br />
235.3<br />
(26.58)<br />
112.3<br />
(12.69)<br />
224.7<br />
(25.4)<br />
12.37<br />
(1.40)<br />
0.40<br />
(0.045)<br />
1.20<br />
(0.136)<br />
Bus Voltage Vrms 24VDC 48VDC 115 230 400 460 24VDC 48VDC 230 400 460 230 400 460<br />
Speed @ Bus Voltage rpm 300 750 3000 3000 3000 3000 300 750 3000 3000 3000 3000 3000 3000<br />
Insulation Class<br />
180 (H)<br />
Insulation System Volt Rating Vrms 460<br />
Class Temperature ˚C T4 = 135˚ T3B = 180˚<br />
Environmental Rating<br />
IP65<br />
ER115 Gearmotor Data<br />
1 Stack Motor 2 Stack Motor 3 Stack Motor<br />
ER115 Armature Inertia * lbf-in-sec 2 (Kg-cm 2 ) 0.00344 (3.89) 0.00441 (4.99) 0.00538 (6.08)<br />
For amplifiers using peak sinusoidal ratings, multiply RMS sinusoidal Kt by .707 and current by 1.414.<br />
120.4<br />
(13.60)<br />
240.8<br />
(27.21)<br />
115.0<br />
(12.99)<br />
230.0<br />
(26.0)<br />
13.70<br />
(1.55)<br />
0.40<br />
(0.045)<br />
1.20<br />
(0.136)<br />
Gearing Reflected Inertia Single Reduction Double Reduction<br />
Gear Stages lbf-in-sec 2 (Kg-cm 2 ) Gear Stages lbf-in-sec 2 (Kg-cm 2 )<br />
4:1 0.0000132 (0.0149) 16:1 0.0000121 (0.0137)<br />
5:1 0.0000087 (0.00984) 20:1, 25:1 0.0000080 (0.00906)<br />
10:1 0.0000023 (0.00261) 40:1, 50:1, 100:1 0.0000021 (0.00242)<br />
Backlash at 1% rated torque:<br />
10 Arc minutes<br />
Efficiency: Single reduction 91%<br />
* Add armature inertia to gearing inertia for total ER system inertia<br />
** For T3B Temperature Class multiply Kt and Ke ratings by 0.83; continuous current by 1.245; continuous torque by 1.09.5.<br />
13 Arc minutes<br />
Double Reduction: 86%<br />
124 9.52.500.6200 | www.exlar.com
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