Small Geared Motors/Gear Head-Motors with Electromagnetic Brake

Brand :

MISUMI

Caution

Product Description

- Small Geared Motors/Gear Head-Motors with Electromagnetic Brake PACMGX / PACMGZ from MISUMI.
- PACMGX is designed for Motor Output 40W or lower.
- PACMGZ is designed for Motor Output 60W or higher.
- The rotational speeds shown are based on synchronous operation speeds. Generally, the actual speeds may be 2 ~ 20% less than indicated value depending on load conditions.
- Accessory: Key (Not available for A60), Screws, Nuts, Washers (4 each)
- Gear Head Lubrication: Greasing

Small geared motors with electromagnetic brake

These motors have a built-in electromagnetic brake for strong braking and load holding when power is off. The rectifier is built into the brake, so it runs from AC power like the motor. Choose the motor and the matching gear head (sold separately).

Types and components

Type		Accessories
Motor	Gearhead	Motor	Capacitor (none for three-phase motors)
(Single-phase) PACMB	(40 W or less) PACMGX	Gearhead	Key (none for A60) Screws, nuts, washers (4 each)
(Three-phase) PACMTB, PACMTBW	(60 W or more) PACMGZ

Motor with electromagnetic brake

PACMB (single-phase), PACMTB (three-phase), PACMTBW (three-phase, overseas standards)

Gearhead: PACMGX (for motors 40 W or less), PACMGZ (for motors 60 W or more)

For transport, storage, installation, assembly, wiring, operation, maintenance and inspection, read the instruction manual supplied with the motor.

The motor is supplied with the gearhead fitted. The motor shaft is a pinion shaft, not a plain shaft.

Part numbers and dimensions

Ordering example

◦Motor with electromagnetic brake					◦Gearhead
Type	-	Output (W)	-	Voltage (V)	Type	-	Reduction ratio
PACMB80	-	W25	-	V100	PACMGX80	-	50

Motor with electromagnetic brake

Type		Output (W)	Voltage (V)	d	D1	L1	L2*2	L3	ℓ	T	(D2)	P	a	P.C.D	Mass (kg)*2
Type	A	Output (W)	Voltage (V)	d	D1	L1	L2*2	L3	ℓ	T	(D2)	P	a	P.C.D	Motor	Gearhead
PACMB *1PACMTB	60	6	100	8	25	32	26 (33)	114.5	6	7	65	10	4.5	70	0.85	0.24 (0.3)
	60	6	200	8	25		26 (33)	114.5	6		65	10	4.5	70	0.85	0.24 (0.3)
	70	15	100	10	30		30 (36)	119	5		74	15	5.5	82	1.1	0.38 (0.45)
	70	15	200				30 (36)	119	5		74			82	1.1	0.38 (0.45)
	80	25	100				30	128	6		86			94	1.8	0.6
	80	25	200				30	128	6		86			94	1.8	0.6
	90	40	100	12	36		37	151	5	7.5	95	18	6.5	104	2.8	0.8
		40	200	12	36		37	151	5		95				2.8	0.8
		60	100	15	34	38	60	168.5	7		92				3.1	1.4
		60	200					168.5			92				3.1	1.4
		90	100					183.5			92				3.7	1.4
		90	200					183.5			92				3.7	1.4
PACMTBW*3 (overseas standards)	80	25	200 220/230	10	30	32	30	128	6	7	86	15	5.5	94	2.1	0.6
PACMTBW*3 (overseas standards)	90	60	200 220/230	15	34	28	60	168.5	7	7.5	92	18	6.5	104	3.4	1.4

*1 Three-phase motors can also be used at 220 V. *2 Values in ( ) are dimensions and mass for gearheads with a reduction ratio of 30 or more. *3 The type is 200 but it can also be used at 220/230 V.

Motor with electromagnetic brake specifications (single-phase): 30-minute rating, 4 poles

Type		Output (W)	Voltage (V)	50Hz						60Hz						Brake input (W)	Brake current (A)	Brake static friction torque N·m	Capacitor capacity µF
				Rating				Starting current (A)	Starting torque N·m	Rating				Starting current (A)	Starting torque N·m
				Input (W)	Current (A)	Rotation speed r/min	Torque N·m			Input (W)	Current (A)	Rotation speed r/min	Torque N·m
Type	A			Input (W)	Current (A)	Rotation speed r/min	Torque N·m			Input (W)	Current (A)	Rotation speed r/min	Torque N·m
PACMB	60	6	100	22	0.22	1300	0.044	0.32	0.056	22	0.22	1600	0.035	0.32	0.056	4	0.04	0.049	3.5(200V)
	60	6	200	25	0.13	1300	0.044	0.17	0.056	25	0.13	1600	0.035	0.18	0.056	4	0.02	0.049	0.9(400V)
	70	15	100	36	0.36	1300	0.110	0.59	0.10	38	0.38	1600	0.088	0.57	0.10	4	0.05	0.078	6 (200V)
	70	15	200	38	0.18	1300	0.110	0.28	0.10	39	0.19	1600	0.088	0.28	0.10	4	0.03	0.078	1.5(400V)
	80	25	100	56	0.57	1300	0.19	1.0	0.20	56	0.56	1600	0.16	1.0	0.20	6	0.06	0.10	9.5(200V)
	80	25	200	56	0.29	1300	0.19	0.52	0.20	56	0.28	1600	0.16	0.51	0.20	6	0.03	0.10	2.4(400V)
	90	40	100	79	0.81	1300	0.29	1.7	0.32	80	0.81	1625	0.24	1.6	0.32	7	0.09	0.20	15 (210V)
		40	200	79	0.4	1300	0.29	0.85	0.32	80	0.41	1625	0.24	0.78	0.32	7	0.05	0.20	3.8(400V)
		60	100	127	1.3	1275	0.45	2.4	0.57	133	1.3	1600	0.36	2.4	0.57	7	0.09	0.39	25 (200V)
		60	200	127	0.65	1275	0.45	1.2	0.57	133	0.65	1600	0.36	1.2	0.57	7	0.05	0.39	6.2(375V)
		90	100	171	1.7	1225	0.70	2.8	0.68	181	1.9	1525	0.56	2.7	0.70	7	0.09	0.39	30 (200V)
		90	200	171	0.93	1225	0.70	1.4	0.68	181	0.96	1525	0.56	1.4	0.70	7	0.05	0.39	7.5(370V)

Motor with electromagnetic brake specifications (three-phase): continuous rating, 4 poles Three-phase motors can also be used at 220 V.

Type		Output (W)	Voltage (V)	Input voltage (V)	50Hz						60Hz						Brake input (W)	Brake current (A)	Brake static friction torque N·m
					Rating				Starting current (A)	Starting torque N·m	Rating				Starting current (A)	Starting torque N·m
					Input (W)	Current (A)	Rotation speed r/min	Torque N·m			Input (W)	Current (A)	Rotation speed r/min	Torque N·m
Type	A				Input (W)	Current (A)	Rotation speed r/min	Torque N·m			Input (W)	Current (A)	Rotation speed r/min	Torque N·m
PACMTB	80	25	200	200	50	0.25	1350	0.18	0.62	0.54	47	0.22	1625	0.15	0.58	0.40	6	0.03	0.10
	80	25		220	54	0.27	1375	0.18	0.67	0.66	49	0.23	1650	0.15	0.64	0.50	6	0.03	0.10
	90	40		200	69	0.31	1350	0.28	0.90	0.72	68	0.29	1625	0.24	0.82	0.51	7	0.05	0.20
		40		220	70	0.32	1375	0.27	1.00	0.88	66	0.28	1675	0.23	0.91	0.63	7	0.05	0.20
		60		200	101	0.45	1350	0.42	1.3	1.0	96	0.41	1625	0.35	1.2	0.69	7	0.05	0.39
		60		220	103	0.46	1375	0.41	1.5	1.2	98	0.40	1650	0.34	1.3	0.87	7	0.05	0.39
		90		200	141	0.62	1350	0.63	2.0	1.6	137	0.56	1625	0.53	1.8	1.1	7	0.05	0.39
		90		220	143	0.65	1400	0.62	2.2	2.0	137	0.56	1650	0.52	2.0	1.4	7	0.05	0.39
PACMTBW (overseas standards)	80	25	200 220/230	200	50	0.25	1350	0.18	0.62	0.54	47	0.22	1625	0.15	0.58	0.4	6	0.03	0.1
	80	25	200 220/230	220/230	-	-	-	-	-	-	49/50	0.23/0.24	1650/1675	0.14	0.64/0.65	0.5/0.54	7/8	0.04	0.1
	90	60	200 220/230	200	101	0.45	1350	0.42	1.3	1.0	96	0.41	1625	0.35	1.3	0.87	9	0.05	0.39
	90	60	200 220/230	220/230	-	-	-	-	-	-	98	0.4/0.41	1650/1675	0.35/0.34	1.3/1.4	0.87/1	11	0.06	0.39

Capacitor (accessory) Supplied with single-phase motors only.

A	Output (W)	Voltage (V)	L	W	D	H	t
60	6	100	39.5	16	26.5	30.5	4
60	6	200	39.5	16.2	27	27	4
70	15	100	39.5	17.5	28	30.5	4
70	15	200	39.5	22	32.5	32.5	4
80	25	100	39.5	22	32.5	30.5	4
80	25	200	49.7	24	34.5	34.5	4
90	40	100	39.5	26.7	37	41	4
	40	200	50	26.7	37.5	38	4
	60	100	50.2	31	41	42	5
	60	200	50	30.5	41	41.5	4
	90	100	50.2	31	41	42	5
	90	200	50	34	45	45	6

Allowable torque with gearhead fitted

Rotation speeds are calculated from the synchronous speed. Actual speed is generally 2–20% lower than shown, depending on the load.
Rotation direction: the reduction ratios marked as in the image below rotate in the same direction as the motor; the others rotate in the opposite direction.

Small geared motors with electromagnetic brake

Type		Output (W)	Reduction ratio		3	3.6	5	6	7.5	9	10	12.5	15	18	20	25	30	36	50	60	75	90	100	120	150	180
			Rotation speed (r/min)	50Hz	500	416.7	300	250	200	166.7	150	120	100	83.3	75	60	50	41.7	30	25	20	16.7	15	12.5	10	8.3
Type	A		Rotation speed (r/min)	60Hz	600	500	360	300	240	200	180	144	120	100	90	72	60	50	36	30	24	20	18	15	12	10
PACMGX	60	6	Allowable torque (N·m)	50Hz	0.098	0.12	0.16	0.19	0.25	0.29	0.33	0.4	0.49	0.59	0.66	0.79	0.95	1.18	1.57	1.86	2.25	2.45
	60	6		60Hz	0.081	0.098	0.13	0.16	0.21	0.25	0.26	0.33	0.4	0.49	0.53	0.66	0.79	0.95	1.27	1.57	1.86	2.25	2.45
	70	15		50Hz	0.24	0.28	0.39	0.47	0.59	0.71	0.8	0.98	1.18	1.37	1.57	1.86	2.25	2.74	3.82	4.61	4.9
	70	15		60Hz	0.2	0.24	0.32	0.39	0.49	0.59	0.66	0.81	0.98	1.18	1.27	1.57	1.86	2.25	3.23	3.82	4.8	4.9
	80	25		50Hz	0.39	0.47	0.66	0.78	0.98	1.18	1.27	1.57	1.96	2.35	2.55	3.14	3.82	4.61	6.37	7.64	7.84
	80	25		60Hz	0.32	0.39	0.55	0.66	0.81	0.98	1.08	1.27	1.57	1.96	2.06	2.65	3.14	3.82	5.29	6.37	7.84
	90	40		50Hz	0.66	0.78	1.08	1.27	1.57	1.86	2.25	2.74	3.23	3.92	4.41	5.29	6.37	7.94	9.8
	90	40		60Hz	0.55	0.66	0.9	1.08	1.27	1.57	1.76	2.25	2.74	3.23	3.53	4.41	5.29	6.37	8.82	9.8
PACMGZ	90	60		50Hz	0.98	1.18	1.57	1.96	2.35	2.94	3.14	3.92	4.7	5.59	6.27	7.55	9.11	11	15.2	17.8	19.6
		60		60Hz	0.78	0.98	1.37	1.57	1.96	2.35	2.65	3.33	3.92	4.7	5.29	6.47	7.55	9.11	12.6	15.2	19.6
		90		50Hz	1.37	1.67	2.25	2.74	3.43	4.12	4.51	5.68	6.76	8.04	9.02	10.9	13	15.7	19.6
		90		60Hz	1.18	1.37	1.86	2.25	2.84	3.43	3.72	4.7	5.68	6.76	7.55	9.21	10.9	13	18.3	19.6

Gearhead (for motor output 40 W or less)

Type		Reduction ratio Selection
Type	A	Reduction ratio Selection
PACMGX (for motors 40 W or less)	60	3	3.6	5	6	7.5	9	10
	70		12.5	15	18	20	25
	80	30	36	50		60	75	90
	90		100	120		150	180

Gearhead (for motor output 60 W or more)

Type		Reduction ratio Selection
Type	A	Reduction ratio Selection
PACMGZ (for motors 60 W or more)	90	3	3.6	5	6	7.5	9	10
			12.5	15	18	20	25
		30	36	50		60	75	90
			100	120		150	180

Alterations

Alterations are available. Refer to the alteration table for applicable codes, dimensional limits and conditions.

For details, please see the PDF catalog.

Technical reference

Outer base type: MTB60, MTB80

Inner base type: MTR80, MTB70, MTB90, MTR90

Material: die-cast aluminum

Wiring diagram

Single-phase	Three-phase
CW (clockwise)	CCW (counterclockwise)	Protect the contacts with a spark killer circuit (R1+C1) across them.
Connecting the switch to the CCW side rotates the motor counterclockwise.	Swapping any two of the white, gray and black wires makes the motor rotate clockwise.	R1 = 10–200 Ω (1/4 W or more) C1 = 0.1–0.33 μF (125 V AC or 250 V AC)

Features

A non-excitation-actuated electromagnetic brake applies braking force even when power is off, so the load is held securely.
Overrun is 2–4 revolutions for the motor alone.
Simple switching allows up to 6 stops per minute (allow at least 3 s of stopping time).
The brake has a built-in rectifier circuit, so it runs on AC power like the motor.
Guide brake life of the electromagnetic brake motor: approx. 1 million operations at the allowable inertia.

Response characteristics

A motor with electromagnetic brake has response characteristics such as start-up time, stopping time and overrun, all of which depend on load inertia.
Three factors affect the response characteristics of a motor with electromagnetic brake:

(1) Average acceleration torque of the motor (2) Average brake torque (3) Load torque and load inertia. Load inertia in particular depends on the driven equipment and needs careful attention.

Characteristics

Type		Output (W)	Frequency	Response characteristics (motor alone)			Average acceleration torque		Rotor inertia		Brake torque		Allowable load inertia
Type	A	Output (W)	Frequency	Start-up time (s)	Stopping time (s)	Overrun (revolutions)	(N·m)	(kgf·cm)	J (kg·cm²)	GD² (kgf·cm²)	(N·m)	(kgf·cm)	J (kg·cm²)	GD² (kgf·cm²)
PACMB	60	6	50Hz	0.07	0.08	1.5	0.0637	0.65	0.201	0.805	0.049	0.5	0.080	0.32
	60	6	60Hz	0.09	0.09	1.6	0.0647	0.66	0.201	0.805	0.049	0.5	0.080	0.32
	70	15	50Hz	0.07	0.05	1.5	0.120	1.22	0.329	1.316	0.078	0.8	0.158	0.63
	70	15	60Hz	0.085	0.07	1.5	0.114	1.16	0.329	1.316	0.078	0.8	0.158	0.63
	80	25	50Hz	0.05	0.13	2.2	0.235	2.40	0.603	2.411	0.10	1.0	0.178	0.71
	80	25	60Hz	0.06	0.14	2.3	0.222	2.27	0.603	2.411	0.10	1.0	0.178	0.71
	90	40	50Hz	0.065	0.14	3	0.439	4.48	1.362	5.446	0.20	2.0	0.735	2.94
		40	60Hz	0.08	0.15	3.5	0.420	4.29	1.362	5.446	0.20	2.0	0.735	2.94
		60	50Hz	0.055	0.11	2.5	0.639	6.52	1.862	7.447	0.39	4.0	0.875	3.5
		60	60Hz	0.065	0.12	2.9	0.615	6.28	1.862	7.447	0.39	4.0	0.875	3.5
		90	50Hz	0.07	0.13	2.8	0.859	8.77	2.353	9.413	0.39	4.0	1	4
		90	60Hz	0.075	0.14	3.2	0.804	8.20	2.353	9.413	0.39	4.0	1	4
PACMTB	80	25	50Hz	0.05	0.13	2.2	0.388	3.96	0.603	2.411	0.10	1.0	0.178	0.71
	80	25	60Hz	0.06	0.14	2.3	0.306	3.12	0.603	2.411	0.10	1.0	0.178	0.71
	90	40	50Hz	0.05	0.15	3.5	0.667	6.81	1.362	5.446	0.20	2.0	0.735	2.94
		40	60Hz	0.06	0.16	4	0.513	5.23	1.362	5.446	0.20	2.0	0.735	2.94
		60	50Hz	0.06	0.12	3	1.031	10.52	1.862	7.447	0.39	4.0	0.875	3.5
		60	60Hz	0.065	0.13	3.4	0.767	7.83	1.862	7.447	0.39	4.0	0.875	3.5
		90	50Hz	0.06	0.14	3.3	1.429	14.58	2.286	9.143	0.39	4.0	1	4
		90	60Hz	0.065	0.15	3.7	1.065	10.87	2.286	9.143	0.39	4.0	1	4

Start-up time formula
• Stopping time formula
• Stopping time and overrun

<SI units>
TS=	JM+JL	×	n
	9.55×10^4		TA-TL
TS: start-up time (s)
TA: average acceleration torque of the motor (N·m)
TL: load torque (N·m)
JM: motor inertia (kg·cm²)
JL: load inertia (kg·cm²)
n: motor speed (r/min)

<Gravitational units>
TS=	GD²M+GD²L	×	n
	37500		TA-TL
TS: start-up time (s)
TA: average acceleration torque of the motor (kgf·cm)
TL: load torque (kgf·cm)
GD²M: GD² of the rotor (kgf·cm²)
GD²L: GD² of the load (kgf·cm²)
n: motor speed (r/min)

<SI units>
Tb=Ta+Tb1
Tb1=	JM+JL	×	n
	9.55×10^4		TbB
Tb: stopping time (s)
Ta: armature attraction time
Separate-cut circuit: approx. 0.02 s
Simultaneous-cut circuit: approx. 0.1 s
Tb1: braking time (s)
TbB: brake torque (N·m)

<Gravitational units>
Tb=Ta+Tb1
Tb1=	GD²M+GD²L	×	n
	37500		TbB
Tb: stopping time (s)
Ta: armature attraction time
Separate-cut circuit: approx. 0.02 s
Simultaneous-cut circuit: approx. 0.1 s
Tb1: braking time (s)
TbB: brake torque (kgf·cm)

Overrun is the number of revolutions
after the stop signal until the motor stops.
, taking the armature attraction
time into account, it is calculated with the formula below.
nbB=a+	n	×	Tb1
	120
nbB: overrun (revolutions) of the motor with electromagnetic brake
a: delay time constant; separate-cut circuit: 0.43 (50 Hz), 0.53 (60 Hz)
Simultaneous-cut circuit: 2.15 (50 Hz), 2.65 (60 Hz)
n: motor speed
Tb1: braking time

Separate-cut and simultaneous-cut circuits: in wiring a motor with an electromagnetic brake, the switch position changes the stopping time.

In a simultaneous-cut circuit the motor coil and brake coil form a closed loop, so the residual magnetism of the motor affects the brake after switch-off. Armature release and stopping time are longer. Where a short stopping time is needed, use a separate-cut circuit.

• Separate-cut circuit		• Simultaneous-cut circuit
	CW (clockwise)		CW (clockwise)

Small Geared Motors/Gear Head-Motors with Electromagnetic Brake

Caution

Product Description

Small geared motors with electromagnetic brake

Types and components

Part numbers and dimensions

Alterations

Technical reference

Wiring diagram

Chat with MISUMI

Service hours

Noted for use