CONTREX CX-1200 - Manual (Page 102)

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KEYPAD LOCKOUT SETUP P1/2
When Keypad Lock Input is active, Control Parameter values can not be changed. The Keypad Lockout Setup screens
allow you to specify which Control Parameters, or blocks of Control Parameters, will be exempt from the lockout when
the Keypad Lockout Input is active. Use KyPdLk Mask (CP-480) in conjunction with the Unlock Control Parameters
481 - 488 to specify which Control Parameters are exempt from the lockout.
KyPdLk Mask
When the keypad lockout input is active (low), and Key Pad Lock Mask (CP-480) is set to either "0",“1”, “2”, “3”, or
“4”, then certain groupings (see list below) of Control Parameters can be exempted (masked out) from the lockout. In
addition, the individual Control Parameters that are specified in CPs 481 through 488 are also exempt. When Key Pad
Lock Mask (CP-480) is set to “4”, then entire blocks of Control Parameters can be exempted in Unlock Block (CP-489).
If Key Pad Lock Mask (CP-480) is set to “0”, then all of the Control Parameters are locked out and non are exempt,
including CPs 418-489.
4 = UnLckBlk = Block Values of the Block Selected by Unlock Block (CP-489) and the Unlocked CP’s.
3 = Blk Vals = All BlockValues (CP-540-667) and the Unlocked CP’s are allowed to change.
2 = Setpnts = Setpoints (CP-210, 220, 230, 235, 240) and the Unlocked CP’s are allowed to change.
1 = UnlckCP = CP’s selected by the Unlock CP A - F are allowed to changed.
0 = Total Lockout (default).
Unlock CP A
Unlock Control Parameter A (CP-481) determines which Control Parameter can change, even when the keypad-lockout
is active. For the Unlock Control Parameter A (CP-481) to function, KyPdLk Mask (CP-480) must be set to a value other
than “0” (All Lock). Enter “0” in Unlock Control Parameter A (CP-481) to disable it from selecting any Control
Parameter.
Unlock CP B (CP-482)
Unlock CP C (CP-483)
Unlock CP D (CP-484)
Unlock CP E (CP-485)
Unlock CP F (CP-486)
Unlock CP G (CP-487)
Unlock CP H (CP-488)
Control Parameters 481 - 488 are identical to each other. Refer to the description for Unlock CP A (CP-481).
KeyPad Lockout
Keypad Lockout (MP-103) displays the Keypad Lockout status. “On” indicates that the Keypad Lockout is active.
When Keypad Lockout is active, Control Parameter values can not be changed. With the exception of the Control
Parameters that are exempted by CP’s 480-489, the “OFF” indicates that the Keypad Lockout is not active. When
the Keypad Lockout is not active, any Control Parameter can be changed.