EN Series Drives Manual
Derating
Temperature:
Operation in ambient temperature
over 50° C (122° F) not recommended.
Drive output power must be derated by
3%/°C between 40° C and 50°C
Single phase operation:
The EN-214 drive output power rating
is reduced by 20%.
Altitude derating:
Above 1000 meters reduce output by
1% per 100 meters.
Auxiliary Logic Power Input
127 to 370 VDC
Drive only: 20 watts
Drive with FM: 30 watts
Auxiliary power supply available from
Emerson Motion Control (#ALP-130).
Pulse Mode
5V Open collector, TTL, Differential RS-
422 line driver compatible.
Impedance: 18k ohm each line to
common.
Maximum input frequency:
Pulse/Pulse mode: 2.0 MHz.
Pulse/Direction: 2.0 MHz.
Quadrature: 2 MHz/channel
(8MHz count rate)
Minimum pulse width: 250 ns
Minimum setup time 250 ns
Minimum hold time after clocking edge
100 ns
64
Serial Interface
RS-232 or RS-485
Internal RS-232 to RS-485 converter
Modbus protocol with 32 bit data
extension
9600 or 19.2 k baud
Fault Detection Capability
Watchdog timer
Power-up self test failure
Non-volatile memory invalid
Invalid Configuration
Power Stage Fault
High DC bus
Low DC bus
Encoder State
Encoder Line Fault
Motor over temperature
RMS shunt power fault
Over speed
Following error (position mode)
CW/CCW limit
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