JUKI SC-921, Instruction Manual

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I. SPECIFICATIONS
II. SET-UP
Supply voltage Single phase 100 to 120V 3-phase 200 to 240V Single phase 220 to 240V
Frequency 50Hz/60Hz 50Hz/60Hz 50Hz/60Hz
Operating envi-
ronment Temperature : 0 to 40˚C
Humidity : 90% or less Temperature : 0 to 40˚C
Humidity : 90% or less Temperature : 0 to 40˚C
Humidity : 90% or less
Input 450VA 450VA 450VA
SC-921 control box
1. Installing to the table
* The instructions apply to the case the control box is installed on the table of the MF-7800D.
To use any other machine head, install the control box on the table referring to the Instruction Manual
for the main body of the relevant sewing machine.
1) Install control box ❷ and sensor bracket ❸ on the table with fitting bolt asm. ❶ supplied with the unit
as accessories. At this time, insert supplied nuts and washers as shown in the figure so that the con-
trol box and sensor bracket are securely fixed.
2) Install the control box (or the one equipped with a small sized motor unit) on the table. Then, install the
sewing machine head on the table. (Refer to the Instruction Manual for the sewing machine.)
3) Install the mounting plate on the CP-18 panel with four tapping screws ❹ supplied with the unit.
At this time, take care not to allow the cable to be caught under the mounting bracket.
(To install the CP-18 on the table, install it as shown in Fig. A.)
4) Install CP-18 panel ❺ and sensor bracket ❸ on the table with wood screws ❻ .
* The electric power is a reference value for the model equipped with the LH-3568A machine head.
It differs by the selected machine head.
SC-921 is a discrete control box and can
be used with the DD (direct-drive) system
sewing machine head.
Install the control box on the table accord-
ing to the instructions given below.
Fig. A
❶
❶
❷
❸
❻
❻
❺
❹
❻
Spring
washer
Convex
washer
Hexagonal
nut
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