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M1250 MINI•PLS Specifications

Input Power:
    105--135 VAC, 50/60 Hz, 35 W exclusive of load
    (220 VAC or 240 VAC option)

Operating Temperature:
–    10 to +130 °F (–23 to +55 °C)

Resolution and Scale Factor:
    Resolution and scale factor are defined as follows:
    The Resolution is defined to be equal to the counts per
    revolution of the resolver.The Scale Factor is defined as
    the desired resolution (counts/rev) minus one.
    Resolution: 17 to 1000
    Scale Factor: 16 to 999

Scan Time:
    57 μsec for 1 cam module
    64 μsec for 2 cam modules
    71 μsec for 3 cam modules
    78 μsec for 4 cam modules
    85 μsec for 5 cam modules

Number of Dual Setpoints Per Channel (On/Off):
     Resolution ÷ 2

    Programmable “0” to full revolution

Motion Detector Limits:
    Low setpoint: up to 1899 RPM (max.)
    High setpoint: up to 1900 RPM (max.)

Number of programmable channels:
    40 ( 5 output modules with 8 channels each)

Slave Systems:
    Up to 7 M1250’s may be slaved to one master unit, giving     additional 7 x 40 channels (total 320) using the same
    position transducer (The slave shares the position
    transducer with the master.)


Program Enable:
    Contact closure to Sig. Ref; or a solid-state switch 0.8 V
     @ 10 mA.

Motion Detector Output:
    NPN sinking, 30 VDC max. @ 100 mA (for Output
    Specifications for N, P, T, see Table 4 on the next page.)

Remote Power Relay Outputs:
    For Cam and Motion outputs requiring higher current
    ratings, a separate Remote Power Relay chassis
    Autotech's part number, ASY-RLYCH-xxxx, can be used.
    The relay chassis is connected to an N type of cam
    module using a prewired cable.
    Relay Chassis Input Power : 120 VAC 50/60 Hz.
    Number of outputs: 8 or 16 cam outputs plus one
         motion output.
    Cam Module required: N type.
    Cable: Prewired 4 feet with DB15 connector on one end.
    Relays: Relay chassis is available for EM or Solid-state
        relays. Electromechanical relays (Part# KSD-A12DC-10A):
        120 VAC @ 10 Amp, SPST

        Solid-State AC relay (Part# KSS-120AC-3AMP)
        24–280 VAC @ 0.2–3 Amp, zero cross-over
        switching triac output relay,optically isolated
        Solid-State DC relays:
            Part# KSS-60VDC-3AMP: 960 VDC @ 3
            Amp, optically isolated Special Output Modules
            Part# KSS-200VDC-1Amp :0–200 VDC @ 1
            Amp, optically isolated Special Output Modules

Special Output Modules

Digital Position/Tach Output Modules:
    Digital output format: BCD
    Digital output Interface:
        TTL, PNP source transistor or NPN sink transistor,
        characteristics same as those of logic level cam
        output modules. See Table 1.
    Module Update Rate:
        Background task, RPM dependent (consult factory).
        PC Synch Circuit and Data Transfer Command:
                0 to 24 Volt logic input (edge triggered, i.e., data
                transfer on both rising and falling edges)
                Logic Low: 0 to 0.8 V @ 3.2 mA
                Logic High: >2.4 V @ 0.4 mA
                Timings: Data latches between 30 ms–100 ms after
                data transfer edge
        Tach Full Scale Range: 0–1000 RPM

Analog Position/Tach Output Module
    Output: 4–20 mA (sourcing or sinking) or 0–10 VDC
    Position or Tach: DIP switch selectable
    Position/RPM range for max Output: DIP switch selectable

Cam Output Modules
Output Type Logic Level Power
TTL* PNP Source

NPN Sink

Part Number ASY-M1250-08TI
ASYM1450-08AC ASY-M1450-08DC

Number of
Outputs per

8 8 8 8 8
Logic TRUE 2 VDC @ 15mA
2.4 V @ 3 mA
(20μA leakage
when Tristated)

Transistor ON
1.7 V drop
@ 100mA

Transistor ON
0.1 mA
@ 50 VDC
1 A max. per channel
Max. 4A per module
1 A max. per channel
Max. 4 A per module
Logic FALSE 0.35 VDC @ 24 mA
(0.4 mA max.
leakage when
Transistor OFF
0.2 mA
@ 50 VDC
Transistor OFF
0.1 mA
@ 50 VDC
30 mA
max. per output
0.1 mA
max. per output
Rated Voltage 5 VDC 50 VDC 50 VDC 105-135 VAC, 60 Hz 10-28 VDC
Response Time < 1μ 12 μs 12μs Turn ON 12 ms
Turn OFF 25 ms
Turn ON 30-50 ms
Turn OFF 15-40 ms
Electrical Isolation 2500 V between control circuit and ouput circuit
*Note: MUX or Tristating Input = Low active TTL level (i.e., Logic TRUE: 0-0.8 V; Logic FALSE: 2-5 VDC)


Position Transducers
PLS Model Transducers Cable

Single-Turn resolver
such as AVG Automation's
RL100, E7R, E8R, RL101
or equivalent.
Max. tracking speed: 1800 rpm

Overall foil shielded cable
such as AVG Automation's
CBL-10T22-xxxx or
Max.: 2500 ft.
Multi-turn resolver such as
AVG Automation's RL210
or equivalent.
Max. tracking speed: 1800 rpm

Overall foil shielded cable
such as AVG Automation's
Max.: 2500 ft.

M1450-LTO Ultrasonic linear transducer
such as AVG Automation's
LT140 or equivalent.
Update rate:
3ms for up to 100
Overal foil shielded cable
such as AVG Automation's
Max.: 1000 ft.

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