64
8. Daily Inspection and Maintenance
65
■
ESB-250, ESB-250-2 (Outdoor Type)
30.5
1
3
4
5
6
2
1
6
AC
200V
SW
MB
5
3
4
2
74
84
96
AC200V/220V
CONTACTOR
BRAKE
13.5
13.5
7
Terminal screw M4
13.5
4.5
66
5.5
41
51
Instant
activation
Timer and gate circuit
Arc-extinguishing circui
t
21
20
19
18
17
16
15
14
13
12
11
9 8
24
23
7
22
6 5 4 3 2 1
10
25
25
注) 屋外立形仕様の場合、
屋外カバー
の形状は異なります。
G
■
Accessory Rectifier (DC Power Supply Unit) Model HD-110M3
Outline Drawing
Internal Circuit (Diagram)
Notes: 1. Model HD-110M3 is an indoor model. Take care to avoid water, etc.
2. Transformer is necessary for operation with 400V class power source. Secondary voltage is 200 – 220V.
Part Number
Part Name
1
Center ring
2
Gap adjusting screw
3
Attachment bolt
4
Field
5
Brake coil
6
Actuating spring
7
Fan
8
Cover
9
Motor shaft
10
Fan set screw
11
Lock bolt
12
Armature
13
Inner disc
14
Outer disc
15
Spacer bush
16
Stopper
17
Hub
18
Brake adapter plate
19
Opposite drive end cover
20
Opposite drive end bearing
21
Opposite drive end bearing cover
22
Brake cover
23
V-ring
24
Brake cover gasket
25
Outdoor cover
Notes: 1. The motor for separately ventilated
type has a different shape.
2
.
There are 3 of [13][14] for ESB-250
(horizontal type), and 2 for ESB-250-2
(vertical type).
3. The outdoor cover [25] for ESB-250-2
(vertical type) has a different shape.
Figure 8-27
Figure 8-28
Items
Specifications
Rated input voltage
AC200/220V 50/60Hz
Maximum input voltage
AC240V 50/60Hz
Minimum input voltage
AC170V 50/60Hz
Standard output
voltage
Instantaneous voltage DC180V (for AC200V input)
Steady voltage
DC90V (for AC200V input)
Maximum output current
DC1.8A (Steady output)
Over excitation time
0.4 - 1.2s
Insulation resistance
100MΩ or larger
(When measured with 1000V megohmmeter)
Insulation withstand voltage
AC2000V for one time or more
Maximum
frequency
Inching
(When on-time 1.2 sec or less): 8 cycles/min
Steady
Constant (When on-time exceeds 1.2 sec):
30 cycles/min
Allowable ambient temperature
-20
℃
to 60
℃