Enc 250 – ACU-RITE ENC 250MS User Manual
Page 12

Acu-Rite Companies Inc.
ENC 250
™
MULTI-SECTION
11
Mechanical Specifications
Electrical Specifications
90°
360°
1 Count
(Phased)
Channel R+
1
0
0°
Channel
A+
1
0
1
0
Channel
B+
1
0
1
0
Channel B-
Channel A-
Channel R-
1
0
Parameter
Digital
Output Signals
Incremental signals
Signal levels
Reference Mark signals
Signal level
Power Supply
Square-wave voltage signals.
Channels A and B, in 90°
quadrature relationship
Differential - TTL
Square-wave pulse
Differential - TTL
5.1 ± 0.1 VDC @ 140 mA max.
I
OH
=(High level output current) = 20mA
V
OH
=(High level output voltage) >2.5Vdc
I
OL
=(Low level output current) = -20mA
V
OL
=(Low level output voltage) < 0.5Vdc
Connecting cable:
Length = .61m [2 ft]
Armor
Connector: DE-9P
Mechanical Specifications
Digital
Resolution
5µm [0.0002 in.]
Grating pitch
100µm [0.00393 in]
Scale medium
Reflective Metal Tape
Accuracy @ 20° C
± 15µm/M [0.00018 in/ft]
Max. cable length
22.9m [75 ft.] VRO / 10.7m [35 ft.] DRO
Measuring length
6240mm [246”] - 19,640mm [773”]
Force required to move
reading head
± 3.3 Newtons [0.75 lbs]
Max. slew speed
1 M/sec [40 in/sec.]
Operating Environment:
Temperature
0° to 40° C [32° to 104°F]
Relative Humidity
20% to 95% (non-condensing)
Storage Environment:
Temperature
-40° to 60° C [-40° to 140°F]
Humidity
20% to 95% (non-condensing)
Weight w/cable
1 kg + 3.2kg/m [2.2 lbs. + 0.18 lbs/in] of measuring length
Reference Mark Interval
100mm [3.937”] Distance encrypted