Relay Indicators; Table 4-2. Relay Indications - Advanced Energy Thyro-PX User Manual

®
Advanced Energy
Table 4‑1. Thyro-PX status LEDs (Continued)
CONTROL 3

Relay Indicators

Errors and faults are indicated by the status LEDs, the fault and limit relays, the
Thyro-Touch display, the Thyro-Tool Pro PC software, and the optional bus
interface.
The unit signals faults in the power controller or load circuit via the FAULT LED
and fault relay K1. To identify the location of the fault, select the status line, and read
the fault log via the Thyro-Touch display, the Thyro-Tool Pro PC software, or the
bus interface.
Simultaneously with the fault signal, you can use the Pulse Lock On/Off (with
acknowledgement), Pulse Lock On/Off (without acknowledgement), or Regulator
Lock On/Off (without acknowledgement) configuration to require that pulse
shutdown occur.
The Thyro-PX power controller is fitted with three relays. Each of these relays has a
change-over contact. AE recommends that users keep the default settings for K1 and
K2. Each relay can be reconfigured as normally-open or normally-closed using the
Thyro-Touch display or the Thyro-Tool Pro PC software.
☞
Important
This manual describes the default configuration. Though these functions are
fully configurable, AE recommends not changing the default configuration.
Table 4‑2. Relay indications
Relay Name
K1 Fault relay
K2 Limit relay
57010148-00B
LED
Green: Blinks at rate proportional to pulse-width
modulation of power controller 3
Red: Power unit 3 hardware failure
This relay is normally-closed, and opens if a fault is detected in the
system. You can set which faults switch the relay.
This relay is normally-closed, and opens if a limit is detected in the
system. You can set which limits switch the relay. This relay opens (in
default setting) if at least one of the following values is exceeded:
• Maximum configured effective value of the load current
• Maximum configured effective value of the load voltage
• Maximum. configured active power of the load
Communication Controls
Thyro-PX® Power Controller
Status
Description
4‑4