Instruction manual

SR84 / SR85, CH33
(E) 9
3-1-2. Output Signal (SR85)
When the slider is moved in the direction of the arrow, the signal is addition when the polarity is “positive,”
and it is subtraction when the polarity is “negative.” The polarity is selected when ordering.
Fig. 3-4
The scale uses incremental serial bidirectional communication protocol for conducting data communication
with controllers. For information on supported company protocols, contact your Magnescale Co., Ltd. sales
representative.
Communication circuit side
When connecting to a controller, be sure to follow the connection procedure of the controller manufacturer.
3-1-3. Power Supply
Use a power supply that satisfies the specifications below.
Use of a power supply with a short-circuit protection device is recommended.
SR84 / SR85
Supply voltage DC 4.75 - 5.25 V
Consumption current 200 mA or less
Inrush current 2 A or less*
Ripple voltage 50 mVp-p or less
*
: When the power supply rising time is 10 ms.
Note
The scale begins functioning normally approximatelly 0.6 seconds after the power is turned on.
Also, a signal may be output momentarily when the power is turned on or off, and this signal can cause the
entire system to malfunction.
To prevent this, be sure to follow the proper power-on and power-off procedures.
Power-on procedure
1. Turn on the power for the scale.
2. Turn on the power for the receiving device.
Power-off procedure
1. Turn off the receiving device.
2. Turn off the scale.