505E Digital Governor
Manual 85018V1
2
Woodward
General Installation and Operating Notes and Warnings
This Equipment is suitable for use in Class I, Division 2, Groups A, B, C, and D
(Class I, Zone 2, Group IIC) or non-hazardous locations.
This equipment is suitable for use in European Zone 2, Group II environments
per compliance with EN60079-15, Electrical apparatus for explosive
atmospheres – Type of protection ‘n’
These listings are limited only to those units bearing the certification
identification.
Field wiring must be stranded copper wire rated at least 75 °C for operating
ambient temperatures expected to exceed 50 °C.
Peripheral equipment must be suitable for the location in which it is used.
Wiring must be in accordance with North American Class I, Division 2 or
European Zone 2 wiring methods as applicable, and in accordance with the
authority having jurisdiction.
EXPLOSION HAZARD—Do not connect or disconnect while circuit is
live unless area is known to be non-hazardous.
Substitution of components may impair suitability for Class I,
Division 2 or Zone 2 applications.
RISQUE D’EXPLOSION—Ne pas raccorder ni débrancher
tant que l’installation est sous tension, sauf en cas
l’ambiance est décidément non dangereuse.
La substitution de composants peut rendre ce matériel
inacceptable pour les emplacements de Classe I,
applications Division 2 ou Zone 2.
505E Software Changes Covered in this Manual Revision
1. PROGRAM MODE: Made all start modes default to false to ensure a
customer programmed the unit. Also added an error check to ensure Rated
Speed (when programmed as a gen set) was less than max gov.
2. SERVICE MODE: Changed the hold changes for Min Load to come from the
Breaker Logic header's Hold Changes input. Previously the hold changes
command was selected under the Speed Control Settings header.
3. SPEED SETPOINT RATES: Changed the minimum adjustment range for all
speed setpoint rates to 0.01 (was 0.1).
4. AUX LIMITER or CONTROLLER: Added logic to ensure the inhibited status
of Aux control when the input is failed. In addition, changed Aux re-enable
logic such that when a failed aux input is restored there is no glitch to the
speed LSS. Also changed breaker open logic to correct a Gen Opening Aux
actuator output glitch.
5. AUX CONTROLLER: Changed the speed setpoint aux biasing logic to only
allow the speed control limiting action (while in aux control) to be active when
the speed setpoint reaches max gov. Prior to this fix the speed limiter could
come into control during an extreme transient.
