Startup Sequence - ABB Symphony Harmony Series Instruction

I/O Block
Table 7-6. Startup Sequence
Sequence
NOTE:
1. Refer to Table 7-2.
2. Refer to Table 7-3.
Press the button once to halt operation. The electronics con-
First Press
ducts an orderly shutdown after stop is initiated to prevent any
Stop
inadvertent process upsets:
1. Save process configuration.
2. Complete any nonvolatile memory write operations.
3. Deactivate all communication links.
4. Transfer control from the primary electronics assembly to
the secondary assembly in redundant configurations.
5. Force any output channels to their powered off states.
6. Illuminate FAULT.
Press the button a second time to initiate a hardware reset. A
Second Press
hardware reset is required to recover from a module time-out
Reset
or a manual stop (single press). After the hardware reset com-
pletes, the block then begins its startup sequence. Refer to
Startup Startup
Startup Startup
Initialization
Initialization clears block memory and restores a known
default configuration. An initialization first clears nonvolatile
memory, then restores a base set of function codes. An I/O
block can be initialized in two ways: software command or
hardware switch. The Harmony controller will automatically
generate an initialize command when necessary. The special
7 - 8
Normal
1 Off
2 On
3 On
4 On
in this section.
NOTE: If the module has already stopped due to an error (i.e., FAULT lit), a sin-
gle press resets the module.
LEDs
Status Block and Field
Fault
1 to 8
On All On
Off All On
Off All Off
1
Off On/Off
Digital
Power Channel
On All On
On All Off
On All Off
2
On On/Off
WBPEEUI240751C0